Merge remote-tracking branch 'qmp-unstable/queue/qmp' into staging
[qemu.git] / vl.c
blob383be1b617c8c53122a7208d67b596b124bc12d0
1 /*
2 * QEMU System Emulator
4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
24 #include <unistd.h>
25 #include <fcntl.h>
26 #include <signal.h>
27 #include <time.h>
28 #include <errno.h>
29 #include <sys/time.h>
30 #include <zlib.h>
31 #include "qemu/bitmap.h"
33 /* Needed early for CONFIG_BSD etc. */
34 #include "config-host.h"
36 #ifndef _WIN32
37 #include <libgen.h>
38 #include <sys/times.h>
39 #include <sys/wait.h>
40 #include <termios.h>
41 #include <sys/mman.h>
42 #include <sys/ioctl.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
46 #include <net/if.h>
47 #include <arpa/inet.h>
48 #include <dirent.h>
49 #include <netdb.h>
50 #include <sys/select.h>
52 #ifdef CONFIG_BSD
53 #include <sys/stat.h>
54 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
55 #include <sys/sysctl.h>
56 #else
57 #include <util.h>
58 #endif
59 #else
60 #ifdef __linux__
61 #include <malloc.h>
63 #include <linux/ppdev.h>
64 #include <linux/parport.h>
65 #endif
67 #ifdef CONFIG_SECCOMP
68 #include "sysemu/seccomp.h"
69 #endif
71 #ifdef __sun__
72 #include <sys/stat.h>
73 #include <sys/ethernet.h>
74 #include <sys/sockio.h>
75 #include <netinet/arp.h>
76 #include <netinet/in_systm.h>
77 #include <netinet/ip.h>
78 #include <netinet/ip_icmp.h> // must come after ip.h
79 #include <netinet/udp.h>
80 #include <netinet/tcp.h>
81 #include <net/if.h>
82 #include <syslog.h>
83 #include <stropts.h>
84 #endif
85 #endif
86 #endif
88 #if defined(CONFIG_VDE)
89 #include <libvdeplug.h>
90 #endif
92 #ifdef _WIN32
93 #include <windows.h>
94 #endif
96 #ifdef CONFIG_SDL
97 #if defined(__APPLE__) || defined(main)
98 #include <SDL.h>
99 int qemu_main(int argc, char **argv, char **envp);
100 int main(int argc, char **argv)
102 return qemu_main(argc, argv, NULL);
104 #undef main
105 #define main qemu_main
106 #endif
107 #endif /* CONFIG_SDL */
109 #ifdef CONFIG_COCOA
110 #undef main
111 #define main qemu_main
112 #endif /* CONFIG_COCOA */
114 #include <glib.h>
116 #include "hw/hw.h"
117 #include "hw/boards.h"
118 #include "hw/usb.h"
119 #include "hw/pcmcia.h"
120 #include "hw/i386/pc.h"
121 #include "hw/isa/isa.h"
122 #include "hw/bt.h"
123 #include "sysemu/watchdog.h"
124 #include "hw/i386/smbios.h"
125 #include "hw/xen/xen.h"
126 #include "hw/qdev.h"
127 #include "hw/loader.h"
128 #include "monitor/qdev.h"
129 #include "sysemu/bt.h"
130 #include "net/net.h"
131 #include "net/slirp.h"
132 #include "monitor/monitor.h"
133 #include "ui/console.h"
134 #include "sysemu/sysemu.h"
135 #include "exec/gdbstub.h"
136 #include "qemu/timer.h"
137 #include "sysemu/char.h"
138 #include "qemu/cache-utils.h"
139 #include "sysemu/blockdev.h"
140 #include "hw/block/block.h"
141 #include "migration/block.h"
142 #include "sysemu/tpm.h"
143 #include "sysemu/dma.h"
144 #include "audio/audio.h"
145 #include "migration/migration.h"
146 #include "sysemu/kvm.h"
147 #include "qapi/qmp/qjson.h"
148 #include "qemu/option.h"
149 #include "qemu/config-file.h"
150 #include "qemu-options.h"
151 #include "qmp-commands.h"
152 #include "qemu/main-loop.h"
153 #ifdef CONFIG_VIRTFS
154 #include "fsdev/qemu-fsdev.h"
155 #endif
156 #include "sysemu/qtest.h"
158 #include "disas/disas.h"
160 #include "qemu/sockets.h"
162 #include "slirp/libslirp.h"
164 #include "trace.h"
165 #include "trace/control.h"
166 #include "qemu/queue.h"
167 #include "sysemu/cpus.h"
168 #include "sysemu/arch_init.h"
169 #include "qemu/osdep.h"
171 #include "ui/qemu-spice.h"
172 #include "qapi/string-input-visitor.h"
173 #include "qom/object_interfaces.h"
175 //#define DEBUG_NET
176 //#define DEBUG_SLIRP
178 #define DEFAULT_RAM_SIZE 128
180 #define MAX_VIRTIO_CONSOLES 1
181 #define MAX_SCLP_CONSOLES 1
183 static const char *data_dir[16];
184 static int data_dir_idx;
185 const char *bios_name = NULL;
186 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
187 DisplayType display_type = DT_DEFAULT;
188 static int display_remote;
189 const char* keyboard_layout = NULL;
190 ram_addr_t ram_size;
191 const char *mem_path = NULL;
192 int mem_prealloc = 0; /* force preallocation of physical target memory */
193 int nb_nics;
194 NICInfo nd_table[MAX_NICS];
195 int autostart;
196 static int rtc_utc = 1;
197 static int rtc_date_offset = -1; /* -1 means no change */
198 QEMUClockType rtc_clock;
199 int vga_interface_type = VGA_NONE;
200 static int full_screen = 0;
201 static int no_frame = 0;
202 int no_quit = 0;
203 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
204 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
205 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
206 CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
207 int win2k_install_hack = 0;
208 int singlestep = 0;
209 int smp_cpus = 1;
210 int max_cpus = 0;
211 int smp_cores = 1;
212 int smp_threads = 1;
213 #ifdef CONFIG_VNC
214 const char *vnc_display;
215 #endif
216 int acpi_enabled = 1;
217 int no_hpet = 0;
218 int fd_bootchk = 1;
219 static int no_reboot;
220 int no_shutdown = 0;
221 int cursor_hide = 1;
222 int graphic_rotate = 0;
223 const char *watchdog;
224 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
225 int nb_option_roms;
226 int semihosting_enabled = 0;
227 int old_param = 0;
228 const char *qemu_name;
229 int alt_grab = 0;
230 int ctrl_grab = 0;
231 unsigned int nb_prom_envs = 0;
232 const char *prom_envs[MAX_PROM_ENVS];
233 int boot_menu;
234 static bool boot_strict;
235 uint8_t *boot_splash_filedata;
236 size_t boot_splash_filedata_size;
237 uint8_t qemu_extra_params_fw[2];
239 typedef struct FWBootEntry FWBootEntry;
241 struct FWBootEntry {
242 QTAILQ_ENTRY(FWBootEntry) link;
243 int32_t bootindex;
244 DeviceState *dev;
245 char *suffix;
248 static QTAILQ_HEAD(, FWBootEntry) fw_boot_order =
249 QTAILQ_HEAD_INITIALIZER(fw_boot_order);
251 int nb_numa_nodes;
252 uint64_t node_mem[MAX_NODES];
253 unsigned long *node_cpumask[MAX_NODES];
255 uint8_t qemu_uuid[16];
256 bool qemu_uuid_set;
258 static QEMUBootSetHandler *boot_set_handler;
259 static void *boot_set_opaque;
261 static NotifierList exit_notifiers =
262 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
264 static NotifierList machine_init_done_notifiers =
265 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
267 static bool tcg_allowed = true;
268 bool xen_allowed;
269 uint32_t xen_domid;
270 enum xen_mode xen_mode = XEN_EMULATE;
271 static int tcg_tb_size;
273 static int default_serial = 1;
274 static int default_parallel = 1;
275 static int default_virtcon = 1;
276 static int default_sclp = 1;
277 static int default_monitor = 1;
278 static int default_floppy = 1;
279 static int default_cdrom = 1;
280 static int default_sdcard = 1;
281 static int default_vga = 1;
283 static struct {
284 const char *driver;
285 int *flag;
286 } default_list[] = {
287 { .driver = "isa-serial", .flag = &default_serial },
288 { .driver = "isa-parallel", .flag = &default_parallel },
289 { .driver = "isa-fdc", .flag = &default_floppy },
290 { .driver = "ide-cd", .flag = &default_cdrom },
291 { .driver = "ide-hd", .flag = &default_cdrom },
292 { .driver = "ide-drive", .flag = &default_cdrom },
293 { .driver = "scsi-cd", .flag = &default_cdrom },
294 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
295 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
296 { .driver = "virtio-serial", .flag = &default_virtcon },
297 { .driver = "VGA", .flag = &default_vga },
298 { .driver = "isa-vga", .flag = &default_vga },
299 { .driver = "cirrus-vga", .flag = &default_vga },
300 { .driver = "isa-cirrus-vga", .flag = &default_vga },
301 { .driver = "vmware-svga", .flag = &default_vga },
302 { .driver = "qxl-vga", .flag = &default_vga },
305 static QemuOptsList qemu_rtc_opts = {
306 .name = "rtc",
307 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
308 .desc = {
310 .name = "base",
311 .type = QEMU_OPT_STRING,
313 .name = "clock",
314 .type = QEMU_OPT_STRING,
316 .name = "driftfix",
317 .type = QEMU_OPT_STRING,
319 { /* end of list */ }
323 static QemuOptsList qemu_sandbox_opts = {
324 .name = "sandbox",
325 .implied_opt_name = "enable",
326 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
327 .desc = {
329 .name = "enable",
330 .type = QEMU_OPT_BOOL,
332 { /* end of list */ }
336 static QemuOptsList qemu_trace_opts = {
337 .name = "trace",
338 .implied_opt_name = "trace",
339 .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
340 .desc = {
342 .name = "events",
343 .type = QEMU_OPT_STRING,
345 .name = "file",
346 .type = QEMU_OPT_STRING,
348 { /* end of list */ }
352 static QemuOptsList qemu_option_rom_opts = {
353 .name = "option-rom",
354 .implied_opt_name = "romfile",
355 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
356 .desc = {
358 .name = "bootindex",
359 .type = QEMU_OPT_NUMBER,
360 }, {
361 .name = "romfile",
362 .type = QEMU_OPT_STRING,
364 { /* end of list */ }
368 static QemuOptsList qemu_machine_opts = {
369 .name = "machine",
370 .implied_opt_name = "type",
371 .merge_lists = true,
372 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
373 .desc = {
375 .name = "type",
376 .type = QEMU_OPT_STRING,
377 .help = "emulated machine"
378 }, {
379 .name = "accel",
380 .type = QEMU_OPT_STRING,
381 .help = "accelerator list",
382 }, {
383 .name = "kernel_irqchip",
384 .type = QEMU_OPT_BOOL,
385 .help = "use KVM in-kernel irqchip",
386 }, {
387 .name = "kvm_shadow_mem",
388 .type = QEMU_OPT_SIZE,
389 .help = "KVM shadow MMU size",
390 }, {
391 .name = "kernel",
392 .type = QEMU_OPT_STRING,
393 .help = "Linux kernel image file",
394 }, {
395 .name = "initrd",
396 .type = QEMU_OPT_STRING,
397 .help = "Linux initial ramdisk file",
398 }, {
399 .name = "append",
400 .type = QEMU_OPT_STRING,
401 .help = "Linux kernel command line",
402 }, {
403 .name = "dtb",
404 .type = QEMU_OPT_STRING,
405 .help = "Linux kernel device tree file",
406 }, {
407 .name = "dumpdtb",
408 .type = QEMU_OPT_STRING,
409 .help = "Dump current dtb to a file and quit",
410 }, {
411 .name = "phandle_start",
412 .type = QEMU_OPT_NUMBER,
413 .help = "The first phandle ID we may generate dynamically",
414 }, {
415 .name = "dt_compatible",
416 .type = QEMU_OPT_STRING,
417 .help = "Overrides the \"compatible\" property of the dt root node",
418 }, {
419 .name = "dump-guest-core",
420 .type = QEMU_OPT_BOOL,
421 .help = "Include guest memory in a core dump",
422 }, {
423 .name = "mem-merge",
424 .type = QEMU_OPT_BOOL,
425 .help = "enable/disable memory merge support",
427 .name = "usb",
428 .type = QEMU_OPT_BOOL,
429 .help = "Set on/off to enable/disable usb",
431 .name = "firmware",
432 .type = QEMU_OPT_STRING,
433 .help = "firmware image",
435 { /* End of list */ }
439 static QemuOptsList qemu_boot_opts = {
440 .name = "boot-opts",
441 .implied_opt_name = "order",
442 .merge_lists = true,
443 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
444 .desc = {
446 .name = "order",
447 .type = QEMU_OPT_STRING,
448 }, {
449 .name = "once",
450 .type = QEMU_OPT_STRING,
451 }, {
452 .name = "menu",
453 .type = QEMU_OPT_BOOL,
454 }, {
455 .name = "splash",
456 .type = QEMU_OPT_STRING,
457 }, {
458 .name = "splash-time",
459 .type = QEMU_OPT_STRING,
460 }, {
461 .name = "reboot-timeout",
462 .type = QEMU_OPT_STRING,
463 }, {
464 .name = "strict",
465 .type = QEMU_OPT_BOOL,
467 { /*End of list */ }
471 static QemuOptsList qemu_add_fd_opts = {
472 .name = "add-fd",
473 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
474 .desc = {
476 .name = "fd",
477 .type = QEMU_OPT_NUMBER,
478 .help = "file descriptor of which a duplicate is added to fd set",
480 .name = "set",
481 .type = QEMU_OPT_NUMBER,
482 .help = "ID of the fd set to add fd to",
484 .name = "opaque",
485 .type = QEMU_OPT_STRING,
486 .help = "free-form string used to describe fd",
488 { /* end of list */ }
492 static QemuOptsList qemu_object_opts = {
493 .name = "object",
494 .implied_opt_name = "qom-type",
495 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
496 .desc = {
501 static QemuOptsList qemu_tpmdev_opts = {
502 .name = "tpmdev",
503 .implied_opt_name = "type",
504 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
505 .desc = {
506 /* options are defined in the TPM backends */
507 { /* end of list */ }
511 static QemuOptsList qemu_realtime_opts = {
512 .name = "realtime",
513 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
514 .desc = {
516 .name = "mlock",
517 .type = QEMU_OPT_BOOL,
519 { /* end of list */ }
523 static QemuOptsList qemu_msg_opts = {
524 .name = "msg",
525 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
526 .desc = {
528 .name = "timestamp",
529 .type = QEMU_OPT_BOOL,
531 { /* end of list */ }
536 * Get machine options
538 * Returns: machine options (never null).
540 QemuOpts *qemu_get_machine_opts(void)
542 QemuOptsList *list;
543 QemuOpts *opts;
545 list = qemu_find_opts("machine");
546 assert(list);
547 opts = qemu_opts_find(list, NULL);
548 if (!opts) {
549 opts = qemu_opts_create(list, NULL, 0, &error_abort);
551 return opts;
554 const char *qemu_get_vm_name(void)
556 return qemu_name;
559 static void res_free(void)
561 if (boot_splash_filedata != NULL) {
562 g_free(boot_splash_filedata);
563 boot_splash_filedata = NULL;
567 static int default_driver_check(QemuOpts *opts, void *opaque)
569 const char *driver = qemu_opt_get(opts, "driver");
570 int i;
572 if (!driver)
573 return 0;
574 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
575 if (strcmp(default_list[i].driver, driver) != 0)
576 continue;
577 *(default_list[i].flag) = 0;
579 return 0;
582 /***********************************************************/
583 /* QEMU state */
585 static RunState current_run_state = RUN_STATE_PRELAUNCH;
587 typedef struct {
588 RunState from;
589 RunState to;
590 } RunStateTransition;
592 static const RunStateTransition runstate_transitions_def[] = {
593 /* from -> to */
594 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
595 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
597 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
598 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
600 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
601 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
603 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
604 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
606 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
607 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
609 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
610 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
612 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
613 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
614 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
616 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
617 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
619 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
621 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
622 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
623 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
624 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
625 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
626 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
627 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
628 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
629 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
630 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
632 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
634 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
635 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
637 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
638 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
639 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
640 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
642 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
643 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
645 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
646 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
648 { RUN_STATE_MAX, RUN_STATE_MAX },
651 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
653 bool runstate_check(RunState state)
655 return current_run_state == state;
658 static void runstate_init(void)
660 const RunStateTransition *p;
662 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
664 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
665 runstate_valid_transitions[p->from][p->to] = true;
669 /* This function will abort() on invalid state transitions */
670 void runstate_set(RunState new_state)
672 assert(new_state < RUN_STATE_MAX);
674 if (!runstate_valid_transitions[current_run_state][new_state]) {
675 fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
676 RunState_lookup[current_run_state],
677 RunState_lookup[new_state]);
678 abort();
680 trace_runstate_set(new_state);
681 current_run_state = new_state;
684 int runstate_is_running(void)
686 return runstate_check(RUN_STATE_RUNNING);
689 bool runstate_needs_reset(void)
691 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
692 runstate_check(RUN_STATE_SHUTDOWN);
695 StatusInfo *qmp_query_status(Error **errp)
697 StatusInfo *info = g_malloc0(sizeof(*info));
699 info->running = runstate_is_running();
700 info->singlestep = singlestep;
701 info->status = current_run_state;
703 return info;
706 /***********************************************************/
707 /* real time host monotonic timer */
709 /***********************************************************/
710 /* host time/date access */
711 void qemu_get_timedate(struct tm *tm, int offset)
713 time_t ti;
715 time(&ti);
716 ti += offset;
717 if (rtc_date_offset == -1) {
718 if (rtc_utc)
719 gmtime_r(&ti, tm);
720 else
721 localtime_r(&ti, tm);
722 } else {
723 ti -= rtc_date_offset;
724 gmtime_r(&ti, tm);
728 int qemu_timedate_diff(struct tm *tm)
730 time_t seconds;
732 if (rtc_date_offset == -1)
733 if (rtc_utc)
734 seconds = mktimegm(tm);
735 else {
736 struct tm tmp = *tm;
737 tmp.tm_isdst = -1; /* use timezone to figure it out */
738 seconds = mktime(&tmp);
740 else
741 seconds = mktimegm(tm) + rtc_date_offset;
743 return seconds - time(NULL);
746 void rtc_change_mon_event(struct tm *tm)
748 QObject *data;
750 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
751 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
752 qobject_decref(data);
755 static void configure_rtc_date_offset(const char *startdate, int legacy)
757 time_t rtc_start_date;
758 struct tm tm;
760 if (!strcmp(startdate, "now") && legacy) {
761 rtc_date_offset = -1;
762 } else {
763 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
764 &tm.tm_year,
765 &tm.tm_mon,
766 &tm.tm_mday,
767 &tm.tm_hour,
768 &tm.tm_min,
769 &tm.tm_sec) == 6) {
770 /* OK */
771 } else if (sscanf(startdate, "%d-%d-%d",
772 &tm.tm_year,
773 &tm.tm_mon,
774 &tm.tm_mday) == 3) {
775 tm.tm_hour = 0;
776 tm.tm_min = 0;
777 tm.tm_sec = 0;
778 } else {
779 goto date_fail;
781 tm.tm_year -= 1900;
782 tm.tm_mon--;
783 rtc_start_date = mktimegm(&tm);
784 if (rtc_start_date == -1) {
785 date_fail:
786 fprintf(stderr, "Invalid date format. Valid formats are:\n"
787 "'2006-06-17T16:01:21' or '2006-06-17'\n");
788 exit(1);
790 rtc_date_offset = time(NULL) - rtc_start_date;
794 static void configure_rtc(QemuOpts *opts)
796 const char *value;
798 value = qemu_opt_get(opts, "base");
799 if (value) {
800 if (!strcmp(value, "utc")) {
801 rtc_utc = 1;
802 } else if (!strcmp(value, "localtime")) {
803 rtc_utc = 0;
804 } else {
805 configure_rtc_date_offset(value, 0);
808 value = qemu_opt_get(opts, "clock");
809 if (value) {
810 if (!strcmp(value, "host")) {
811 rtc_clock = QEMU_CLOCK_HOST;
812 } else if (!strcmp(value, "rt")) {
813 rtc_clock = QEMU_CLOCK_REALTIME;
814 } else if (!strcmp(value, "vm")) {
815 rtc_clock = QEMU_CLOCK_VIRTUAL;
816 } else {
817 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
818 exit(1);
821 value = qemu_opt_get(opts, "driftfix");
822 if (value) {
823 if (!strcmp(value, "slew")) {
824 static GlobalProperty slew_lost_ticks[] = {
826 .driver = "mc146818rtc",
827 .property = "lost_tick_policy",
828 .value = "slew",
830 { /* end of list */ }
833 qdev_prop_register_global_list(slew_lost_ticks);
834 } else if (!strcmp(value, "none")) {
835 /* discard is default */
836 } else {
837 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
838 exit(1);
843 /***********************************************************/
844 /* Bluetooth support */
845 static int nb_hcis;
846 static int cur_hci;
847 static struct HCIInfo *hci_table[MAX_NICS];
849 struct HCIInfo *qemu_next_hci(void)
851 if (cur_hci == nb_hcis)
852 return &null_hci;
854 return hci_table[cur_hci++];
857 static int bt_hci_parse(const char *str)
859 struct HCIInfo *hci;
860 bdaddr_t bdaddr;
862 if (nb_hcis >= MAX_NICS) {
863 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
864 return -1;
867 hci = hci_init(str);
868 if (!hci)
869 return -1;
871 bdaddr.b[0] = 0x52;
872 bdaddr.b[1] = 0x54;
873 bdaddr.b[2] = 0x00;
874 bdaddr.b[3] = 0x12;
875 bdaddr.b[4] = 0x34;
876 bdaddr.b[5] = 0x56 + nb_hcis;
877 hci->bdaddr_set(hci, bdaddr.b);
879 hci_table[nb_hcis++] = hci;
881 return 0;
884 static void bt_vhci_add(int vlan_id)
886 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
888 if (!vlan->slave)
889 fprintf(stderr, "qemu: warning: adding a VHCI to "
890 "an empty scatternet %i\n", vlan_id);
892 bt_vhci_init(bt_new_hci(vlan));
895 static struct bt_device_s *bt_device_add(const char *opt)
897 struct bt_scatternet_s *vlan;
898 int vlan_id = 0;
899 char *endp = strstr(opt, ",vlan=");
900 int len = (endp ? endp - opt : strlen(opt)) + 1;
901 char devname[10];
903 pstrcpy(devname, MIN(sizeof(devname), len), opt);
905 if (endp) {
906 vlan_id = strtol(endp + 6, &endp, 0);
907 if (*endp) {
908 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
909 return 0;
913 vlan = qemu_find_bt_vlan(vlan_id);
915 if (!vlan->slave)
916 fprintf(stderr, "qemu: warning: adding a slave device to "
917 "an empty scatternet %i\n", vlan_id);
919 if (!strcmp(devname, "keyboard"))
920 return bt_keyboard_init(vlan);
922 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
923 return 0;
926 static int bt_parse(const char *opt)
928 const char *endp, *p;
929 int vlan;
931 if (strstart(opt, "hci", &endp)) {
932 if (!*endp || *endp == ',') {
933 if (*endp)
934 if (!strstart(endp, ",vlan=", 0))
935 opt = endp + 1;
937 return bt_hci_parse(opt);
939 } else if (strstart(opt, "vhci", &endp)) {
940 if (!*endp || *endp == ',') {
941 if (*endp) {
942 if (strstart(endp, ",vlan=", &p)) {
943 vlan = strtol(p, (char **) &endp, 0);
944 if (*endp) {
945 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
946 return 1;
948 } else {
949 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
950 return 1;
952 } else
953 vlan = 0;
955 bt_vhci_add(vlan);
956 return 0;
958 } else if (strstart(opt, "device:", &endp))
959 return !bt_device_add(endp);
961 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
962 return 1;
965 static int parse_sandbox(QemuOpts *opts, void *opaque)
967 /* FIXME: change this to true for 1.3 */
968 if (qemu_opt_get_bool(opts, "enable", false)) {
969 #ifdef CONFIG_SECCOMP
970 if (seccomp_start() < 0) {
971 qerror_report(ERROR_CLASS_GENERIC_ERROR,
972 "failed to install seccomp syscall filter in the kernel");
973 return -1;
975 #else
976 qerror_report(ERROR_CLASS_GENERIC_ERROR,
977 "sandboxing request but seccomp is not compiled into this build");
978 return -1;
979 #endif
982 return 0;
985 bool usb_enabled(bool default_usb)
987 return qemu_opt_get_bool(qemu_get_machine_opts(), "usb", default_usb);
990 #ifndef _WIN32
991 static int parse_add_fd(QemuOpts *opts, void *opaque)
993 int fd, dupfd, flags;
994 int64_t fdset_id;
995 const char *fd_opaque = NULL;
997 fd = qemu_opt_get_number(opts, "fd", -1);
998 fdset_id = qemu_opt_get_number(opts, "set", -1);
999 fd_opaque = qemu_opt_get(opts, "opaque");
1001 if (fd < 0) {
1002 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1003 "fd option is required and must be non-negative");
1004 return -1;
1007 if (fd <= STDERR_FILENO) {
1008 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1009 "fd cannot be a standard I/O stream");
1010 return -1;
1014 * All fds inherited across exec() necessarily have FD_CLOEXEC
1015 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1017 flags = fcntl(fd, F_GETFD);
1018 if (flags == -1 || (flags & FD_CLOEXEC)) {
1019 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1020 "fd is not valid or already in use");
1021 return -1;
1024 if (fdset_id < 0) {
1025 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1026 "set option is required and must be non-negative");
1027 return -1;
1030 #ifdef F_DUPFD_CLOEXEC
1031 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1032 #else
1033 dupfd = dup(fd);
1034 if (dupfd != -1) {
1035 qemu_set_cloexec(dupfd);
1037 #endif
1038 if (dupfd == -1) {
1039 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1040 "Error duplicating fd: %s", strerror(errno));
1041 return -1;
1044 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1045 monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque ? true : false,
1046 fd_opaque, NULL);
1048 return 0;
1051 static int cleanup_add_fd(QemuOpts *opts, void *opaque)
1053 int fd;
1055 fd = qemu_opt_get_number(opts, "fd", -1);
1056 close(fd);
1058 return 0;
1060 #endif
1062 /***********************************************************/
1063 /* QEMU Block devices */
1065 #define HD_OPTS "media=disk"
1066 #define CDROM_OPTS "media=cdrom"
1067 #define FD_OPTS ""
1068 #define PFLASH_OPTS ""
1069 #define MTD_OPTS ""
1070 #define SD_OPTS ""
1072 static int drive_init_func(QemuOpts *opts, void *opaque)
1074 BlockInterfaceType *block_default_type = opaque;
1076 return drive_init(opts, *block_default_type) == NULL;
1079 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1081 if (NULL == qemu_opt_get(opts, "snapshot")) {
1082 qemu_opt_set(opts, "snapshot", "on");
1084 return 0;
1087 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1088 int index, const char *optstr)
1090 QemuOpts *opts;
1092 if (!enable || drive_get_by_index(type, index)) {
1093 return;
1096 opts = drive_add(type, index, NULL, optstr);
1097 if (snapshot) {
1098 drive_enable_snapshot(opts, NULL);
1100 if (!drive_init(opts, type)) {
1101 exit(1);
1105 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1107 boot_set_handler = func;
1108 boot_set_opaque = opaque;
1111 int qemu_boot_set(const char *boot_order)
1113 if (!boot_set_handler) {
1114 return -EINVAL;
1116 return boot_set_handler(boot_set_opaque, boot_order);
1119 static void validate_bootdevices(const char *devices)
1121 /* We just do some generic consistency checks */
1122 const char *p;
1123 int bitmap = 0;
1125 for (p = devices; *p != '\0'; p++) {
1126 /* Allowed boot devices are:
1127 * a-b: floppy disk drives
1128 * c-f: IDE disk drives
1129 * g-m: machine implementation dependent drives
1130 * n-p: network devices
1131 * It's up to each machine implementation to check if the given boot
1132 * devices match the actual hardware implementation and firmware
1133 * features.
1135 if (*p < 'a' || *p > 'p') {
1136 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1137 exit(1);
1139 if (bitmap & (1 << (*p - 'a'))) {
1140 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1141 exit(1);
1143 bitmap |= 1 << (*p - 'a');
1147 static void restore_boot_order(void *opaque)
1149 char *normal_boot_order = opaque;
1150 static int first = 1;
1152 /* Restore boot order and remove ourselves after the first boot */
1153 if (first) {
1154 first = 0;
1155 return;
1158 qemu_boot_set(normal_boot_order);
1160 qemu_unregister_reset(restore_boot_order, normal_boot_order);
1161 g_free(normal_boot_order);
1164 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
1165 const char *suffix)
1167 FWBootEntry *node, *i;
1169 if (bootindex < 0) {
1170 return;
1173 assert(dev != NULL || suffix != NULL);
1175 node = g_malloc0(sizeof(FWBootEntry));
1176 node->bootindex = bootindex;
1177 node->suffix = g_strdup(suffix);
1178 node->dev = dev;
1180 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1181 if (i->bootindex == bootindex) {
1182 fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
1183 exit(1);
1184 } else if (i->bootindex < bootindex) {
1185 continue;
1187 QTAILQ_INSERT_BEFORE(i, node, link);
1188 return;
1190 QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
1193 DeviceState *get_boot_device(uint32_t position)
1195 uint32_t counter = 0;
1196 FWBootEntry *i = NULL;
1197 DeviceState *res = NULL;
1199 if (!QTAILQ_EMPTY(&fw_boot_order)) {
1200 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1201 if (counter == position) {
1202 res = i->dev;
1203 break;
1205 counter++;
1208 return res;
1212 * This function returns null terminated string that consist of new line
1213 * separated device paths.
1215 * memory pointed by "size" is assigned total length of the array in bytes
1218 char *get_boot_devices_list(size_t *size)
1220 FWBootEntry *i;
1221 size_t total = 0;
1222 char *list = NULL;
1224 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1225 char *devpath = NULL, *bootpath;
1226 size_t len;
1228 if (i->dev) {
1229 devpath = qdev_get_fw_dev_path(i->dev);
1230 assert(devpath);
1233 if (i->suffix && devpath) {
1234 size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
1236 bootpath = g_malloc(bootpathlen);
1237 snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
1238 g_free(devpath);
1239 } else if (devpath) {
1240 bootpath = devpath;
1241 } else {
1242 assert(i->suffix);
1243 bootpath = g_strdup(i->suffix);
1246 if (total) {
1247 list[total-1] = '\n';
1249 len = strlen(bootpath) + 1;
1250 list = g_realloc(list, total + len);
1251 memcpy(&list[total], bootpath, len);
1252 total += len;
1253 g_free(bootpath);
1256 *size = total;
1258 if (boot_strict && *size > 0) {
1259 list[total-1] = '\n';
1260 list = g_realloc(list, total + 5);
1261 memcpy(&list[total], "HALT", 5);
1262 *size = total + 5;
1264 return list;
1267 static void numa_node_parse_cpus(int nodenr, const char *cpus)
1269 char *endptr;
1270 unsigned long long value, endvalue;
1272 /* Empty CPU range strings will be considered valid, they will simply
1273 * not set any bit in the CPU bitmap.
1275 if (!*cpus) {
1276 return;
1279 if (parse_uint(cpus, &value, &endptr, 10) < 0) {
1280 goto error;
1282 if (*endptr == '-') {
1283 if (parse_uint_full(endptr + 1, &endvalue, 10) < 0) {
1284 goto error;
1286 } else if (*endptr == '\0') {
1287 endvalue = value;
1288 } else {
1289 goto error;
1292 if (endvalue >= MAX_CPUMASK_BITS) {
1293 endvalue = MAX_CPUMASK_BITS - 1;
1294 fprintf(stderr,
1295 "qemu: NUMA: A max of %d VCPUs are supported\n",
1296 MAX_CPUMASK_BITS);
1299 if (endvalue < value) {
1300 goto error;
1303 bitmap_set(node_cpumask[nodenr], value, endvalue-value+1);
1304 return;
1306 error:
1307 fprintf(stderr, "qemu: Invalid NUMA CPU range: %s\n", cpus);
1308 exit(1);
1311 static void numa_add(const char *optarg)
1313 char option[128];
1314 char *endptr;
1315 unsigned long long nodenr;
1317 optarg = get_opt_name(option, 128, optarg, ',');
1318 if (*optarg == ',') {
1319 optarg++;
1321 if (!strcmp(option, "node")) {
1323 if (nb_numa_nodes >= MAX_NODES) {
1324 fprintf(stderr, "qemu: too many NUMA nodes\n");
1325 exit(1);
1328 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1329 nodenr = nb_numa_nodes;
1330 } else {
1331 if (parse_uint_full(option, &nodenr, 10) < 0) {
1332 fprintf(stderr, "qemu: Invalid NUMA nodeid: %s\n", option);
1333 exit(1);
1337 if (nodenr >= MAX_NODES) {
1338 fprintf(stderr, "qemu: invalid NUMA nodeid: %llu\n", nodenr);
1339 exit(1);
1342 if (get_param_value(option, 128, "mem", optarg) == 0) {
1343 node_mem[nodenr] = 0;
1344 } else {
1345 int64_t sval;
1346 sval = strtosz(option, &endptr);
1347 if (sval < 0 || *endptr) {
1348 fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
1349 exit(1);
1351 node_mem[nodenr] = sval;
1353 if (get_param_value(option, 128, "cpus", optarg) != 0) {
1354 numa_node_parse_cpus(nodenr, option);
1356 nb_numa_nodes++;
1357 } else {
1358 fprintf(stderr, "Invalid -numa option: %s\n", option);
1359 exit(1);
1363 static QemuOptsList qemu_smp_opts = {
1364 .name = "smp-opts",
1365 .implied_opt_name = "cpus",
1366 .merge_lists = true,
1367 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1368 .desc = {
1370 .name = "cpus",
1371 .type = QEMU_OPT_NUMBER,
1372 }, {
1373 .name = "sockets",
1374 .type = QEMU_OPT_NUMBER,
1375 }, {
1376 .name = "cores",
1377 .type = QEMU_OPT_NUMBER,
1378 }, {
1379 .name = "threads",
1380 .type = QEMU_OPT_NUMBER,
1381 }, {
1382 .name = "maxcpus",
1383 .type = QEMU_OPT_NUMBER,
1385 { /*End of list */ }
1389 static void smp_parse(QemuOpts *opts)
1391 if (opts) {
1393 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1394 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1395 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1396 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1398 /* compute missing values, prefer sockets over cores over threads */
1399 if (cpus == 0 || sockets == 0) {
1400 sockets = sockets > 0 ? sockets : 1;
1401 cores = cores > 0 ? cores : 1;
1402 threads = threads > 0 ? threads : 1;
1403 if (cpus == 0) {
1404 cpus = cores * threads * sockets;
1406 } else {
1407 if (cores == 0) {
1408 threads = threads > 0 ? threads : 1;
1409 cores = cpus / (sockets * threads);
1410 } else {
1411 threads = cpus / (cores * sockets);
1415 max_cpus = qemu_opt_get_number(opts, "maxcpus", 0);
1417 smp_cpus = cpus;
1418 smp_cores = cores > 0 ? cores : 1;
1419 smp_threads = threads > 0 ? threads : 1;
1423 if (max_cpus == 0) {
1424 max_cpus = smp_cpus;
1427 if (max_cpus > 255) {
1428 fprintf(stderr, "Unsupported number of maxcpus\n");
1429 exit(1);
1431 if (max_cpus < smp_cpus) {
1432 fprintf(stderr, "maxcpus must be equal to or greater than smp\n");
1433 exit(1);
1438 static void configure_realtime(QemuOpts *opts)
1440 bool enable_mlock;
1442 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
1444 if (enable_mlock) {
1445 if (os_mlock() < 0) {
1446 fprintf(stderr, "qemu: locking memory failed\n");
1447 exit(1);
1453 static void configure_msg(QemuOpts *opts)
1455 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1458 /***********************************************************/
1459 /* USB devices */
1461 static int usb_device_add(const char *devname)
1463 USBDevice *dev = NULL;
1464 #ifndef CONFIG_LINUX
1465 const char *p;
1466 #endif
1468 if (!usb_enabled(false)) {
1469 return -1;
1472 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1473 dev = usbdevice_create(devname);
1474 if (dev)
1475 goto done;
1477 /* the other ones */
1478 #ifndef CONFIG_LINUX
1479 /* only the linux version is qdev-ified, usb-bsd still needs this */
1480 if (strstart(devname, "host:", &p)) {
1481 dev = usb_host_device_open(usb_bus_find(-1), p);
1483 #endif
1484 if (!dev)
1485 return -1;
1487 done:
1488 return 0;
1491 static int usb_device_del(const char *devname)
1493 int bus_num, addr;
1494 const char *p;
1496 if (strstart(devname, "host:", &p)) {
1497 return -1;
1500 if (!usb_enabled(false)) {
1501 return -1;
1504 p = strchr(devname, '.');
1505 if (!p)
1506 return -1;
1507 bus_num = strtoul(devname, NULL, 0);
1508 addr = strtoul(p + 1, NULL, 0);
1510 return usb_device_delete_addr(bus_num, addr);
1513 static int usb_parse(const char *cmdline)
1515 int r;
1516 r = usb_device_add(cmdline);
1517 if (r < 0) {
1518 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1520 return r;
1523 void do_usb_add(Monitor *mon, const QDict *qdict)
1525 const char *devname = qdict_get_str(qdict, "devname");
1526 if (usb_device_add(devname) < 0) {
1527 error_report("could not add USB device '%s'", devname);
1531 void do_usb_del(Monitor *mon, const QDict *qdict)
1533 const char *devname = qdict_get_str(qdict, "devname");
1534 if (usb_device_del(devname) < 0) {
1535 error_report("could not delete USB device '%s'", devname);
1539 /***********************************************************/
1540 /* PCMCIA/Cardbus */
1542 static struct pcmcia_socket_entry_s {
1543 PCMCIASocket *socket;
1544 struct pcmcia_socket_entry_s *next;
1545 } *pcmcia_sockets = 0;
1547 void pcmcia_socket_register(PCMCIASocket *socket)
1549 struct pcmcia_socket_entry_s *entry;
1551 entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1552 entry->socket = socket;
1553 entry->next = pcmcia_sockets;
1554 pcmcia_sockets = entry;
1557 void pcmcia_socket_unregister(PCMCIASocket *socket)
1559 struct pcmcia_socket_entry_s *entry, **ptr;
1561 ptr = &pcmcia_sockets;
1562 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1563 if (entry->socket == socket) {
1564 *ptr = entry->next;
1565 g_free(entry);
1569 void pcmcia_info(Monitor *mon, const QDict *qdict)
1571 struct pcmcia_socket_entry_s *iter;
1573 if (!pcmcia_sockets)
1574 monitor_printf(mon, "No PCMCIA sockets\n");
1576 for (iter = pcmcia_sockets; iter; iter = iter->next)
1577 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1578 iter->socket->attached ? iter->socket->card_string :
1579 "Empty");
1582 /***********************************************************/
1583 /* machine registration */
1585 static QEMUMachine *first_machine = NULL;
1586 QEMUMachine *current_machine = NULL;
1588 int qemu_register_machine(QEMUMachine *m)
1590 QEMUMachine **pm;
1591 pm = &first_machine;
1592 while (*pm != NULL)
1593 pm = &(*pm)->next;
1594 m->next = NULL;
1595 *pm = m;
1596 return 0;
1599 static QEMUMachine *find_machine(const char *name)
1601 QEMUMachine *m;
1603 for(m = first_machine; m != NULL; m = m->next) {
1604 if (!strcmp(m->name, name))
1605 return m;
1606 if (m->alias && !strcmp(m->alias, name))
1607 return m;
1609 return NULL;
1612 QEMUMachine *find_default_machine(void)
1614 QEMUMachine *m;
1616 for(m = first_machine; m != NULL; m = m->next) {
1617 if (m->is_default) {
1618 return m;
1621 return NULL;
1624 MachineInfoList *qmp_query_machines(Error **errp)
1626 MachineInfoList *mach_list = NULL;
1627 QEMUMachine *m;
1629 for (m = first_machine; m; m = m->next) {
1630 MachineInfoList *entry;
1631 MachineInfo *info;
1633 info = g_malloc0(sizeof(*info));
1634 if (m->is_default) {
1635 info->has_is_default = true;
1636 info->is_default = true;
1639 if (m->alias) {
1640 info->has_alias = true;
1641 info->alias = g_strdup(m->alias);
1644 info->name = g_strdup(m->name);
1645 info->cpu_max = !m->max_cpus ? 1 : m->max_cpus;
1647 entry = g_malloc0(sizeof(*entry));
1648 entry->value = info;
1649 entry->next = mach_list;
1650 mach_list = entry;
1653 return mach_list;
1656 /***********************************************************/
1657 /* main execution loop */
1659 struct vm_change_state_entry {
1660 VMChangeStateHandler *cb;
1661 void *opaque;
1662 QLIST_ENTRY (vm_change_state_entry) entries;
1665 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1667 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1668 void *opaque)
1670 VMChangeStateEntry *e;
1672 e = g_malloc0(sizeof (*e));
1674 e->cb = cb;
1675 e->opaque = opaque;
1676 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1677 return e;
1680 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1682 QLIST_REMOVE (e, entries);
1683 g_free (e);
1686 void vm_state_notify(int running, RunState state)
1688 VMChangeStateEntry *e;
1690 trace_vm_state_notify(running, state);
1692 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1693 e->cb(e->opaque, running, state);
1697 void vm_start(void)
1699 if (!runstate_is_running()) {
1700 cpu_enable_ticks();
1701 runstate_set(RUN_STATE_RUNNING);
1702 vm_state_notify(1, RUN_STATE_RUNNING);
1703 resume_all_vcpus();
1704 monitor_protocol_event(QEVENT_RESUME, NULL);
1708 /* reset/shutdown handler */
1710 typedef struct QEMUResetEntry {
1711 QTAILQ_ENTRY(QEMUResetEntry) entry;
1712 QEMUResetHandler *func;
1713 void *opaque;
1714 } QEMUResetEntry;
1716 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1717 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1718 static int reset_requested;
1719 static int shutdown_requested, shutdown_signal = -1;
1720 static pid_t shutdown_pid;
1721 static int powerdown_requested;
1722 static int debug_requested;
1723 static int suspend_requested;
1724 static WakeupReason wakeup_reason;
1725 static NotifierList powerdown_notifiers =
1726 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1727 static NotifierList suspend_notifiers =
1728 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1729 static NotifierList wakeup_notifiers =
1730 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1731 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1732 static RunState vmstop_requested = RUN_STATE_MAX;
1734 int qemu_shutdown_requested_get(void)
1736 return shutdown_requested;
1739 int qemu_reset_requested_get(void)
1741 return reset_requested;
1744 static int qemu_shutdown_requested(void)
1746 int r = shutdown_requested;
1747 shutdown_requested = 0;
1748 return r;
1751 static void qemu_kill_report(void)
1753 if (!qtest_enabled() && shutdown_signal != -1) {
1754 fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1755 if (shutdown_pid == 0) {
1756 /* This happens for eg ^C at the terminal, so it's worth
1757 * avoiding printing an odd message in that case.
1759 fputc('\n', stderr);
1760 } else {
1761 fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1763 shutdown_signal = -1;
1767 static int qemu_reset_requested(void)
1769 int r = reset_requested;
1770 reset_requested = 0;
1771 return r;
1774 static int qemu_suspend_requested(void)
1776 int r = suspend_requested;
1777 suspend_requested = 0;
1778 return r;
1781 static WakeupReason qemu_wakeup_requested(void)
1783 return wakeup_reason;
1786 static int qemu_powerdown_requested(void)
1788 int r = powerdown_requested;
1789 powerdown_requested = 0;
1790 return r;
1793 static int qemu_debug_requested(void)
1795 int r = debug_requested;
1796 debug_requested = 0;
1797 return r;
1800 /* We use RUN_STATE_MAX but any invalid value will do */
1801 static bool qemu_vmstop_requested(RunState *r)
1803 if (vmstop_requested < RUN_STATE_MAX) {
1804 *r = vmstop_requested;
1805 vmstop_requested = RUN_STATE_MAX;
1806 return true;
1809 return false;
1812 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1814 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1816 re->func = func;
1817 re->opaque = opaque;
1818 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1821 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1823 QEMUResetEntry *re;
1825 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1826 if (re->func == func && re->opaque == opaque) {
1827 QTAILQ_REMOVE(&reset_handlers, re, entry);
1828 g_free(re);
1829 return;
1834 void qemu_devices_reset(void)
1836 QEMUResetEntry *re, *nre;
1838 /* reset all devices */
1839 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1840 re->func(re->opaque);
1844 void qemu_system_reset(bool report)
1846 if (current_machine && current_machine->reset) {
1847 current_machine->reset();
1848 } else {
1849 qemu_devices_reset();
1851 if (report) {
1852 monitor_protocol_event(QEVENT_RESET, NULL);
1854 cpu_synchronize_all_post_reset();
1857 void qemu_system_reset_request(void)
1859 if (no_reboot) {
1860 shutdown_requested = 1;
1861 } else {
1862 reset_requested = 1;
1864 cpu_stop_current();
1865 qemu_notify_event();
1868 static void qemu_system_suspend(void)
1870 pause_all_vcpus();
1871 notifier_list_notify(&suspend_notifiers, NULL);
1872 runstate_set(RUN_STATE_SUSPENDED);
1873 monitor_protocol_event(QEVENT_SUSPEND, NULL);
1876 void qemu_system_suspend_request(void)
1878 if (runstate_check(RUN_STATE_SUSPENDED)) {
1879 return;
1881 suspend_requested = 1;
1882 cpu_stop_current();
1883 qemu_notify_event();
1886 void qemu_register_suspend_notifier(Notifier *notifier)
1888 notifier_list_add(&suspend_notifiers, notifier);
1891 void qemu_system_wakeup_request(WakeupReason reason)
1893 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1894 return;
1896 if (!(wakeup_reason_mask & (1 << reason))) {
1897 return;
1899 runstate_set(RUN_STATE_RUNNING);
1900 wakeup_reason = reason;
1901 qemu_notify_event();
1904 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1906 if (enabled) {
1907 wakeup_reason_mask |= (1 << reason);
1908 } else {
1909 wakeup_reason_mask &= ~(1 << reason);
1913 void qemu_register_wakeup_notifier(Notifier *notifier)
1915 notifier_list_add(&wakeup_notifiers, notifier);
1918 void qemu_system_killed(int signal, pid_t pid)
1920 shutdown_signal = signal;
1921 shutdown_pid = pid;
1922 no_shutdown = 0;
1923 qemu_system_shutdown_request();
1926 void qemu_system_shutdown_request(void)
1928 shutdown_requested = 1;
1929 qemu_notify_event();
1932 static void qemu_system_powerdown(void)
1934 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1935 notifier_list_notify(&powerdown_notifiers, NULL);
1938 void qemu_system_powerdown_request(void)
1940 powerdown_requested = 1;
1941 qemu_notify_event();
1944 void qemu_register_powerdown_notifier(Notifier *notifier)
1946 notifier_list_add(&powerdown_notifiers, notifier);
1949 void qemu_system_debug_request(void)
1951 debug_requested = 1;
1952 qemu_notify_event();
1955 void qemu_system_vmstop_request(RunState state)
1957 vmstop_requested = state;
1958 qemu_notify_event();
1961 static bool main_loop_should_exit(void)
1963 RunState r;
1964 if (qemu_debug_requested()) {
1965 vm_stop(RUN_STATE_DEBUG);
1967 if (qemu_suspend_requested()) {
1968 qemu_system_suspend();
1970 if (qemu_shutdown_requested()) {
1971 qemu_kill_report();
1972 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1973 if (no_shutdown) {
1974 vm_stop(RUN_STATE_SHUTDOWN);
1975 } else {
1976 return true;
1979 if (qemu_reset_requested()) {
1980 pause_all_vcpus();
1981 cpu_synchronize_all_states();
1982 qemu_system_reset(VMRESET_REPORT);
1983 resume_all_vcpus();
1984 if (runstate_needs_reset()) {
1985 runstate_set(RUN_STATE_PAUSED);
1988 if (qemu_wakeup_requested()) {
1989 pause_all_vcpus();
1990 cpu_synchronize_all_states();
1991 qemu_system_reset(VMRESET_SILENT);
1992 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1993 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1994 resume_all_vcpus();
1995 monitor_protocol_event(QEVENT_WAKEUP, NULL);
1997 if (qemu_powerdown_requested()) {
1998 qemu_system_powerdown();
2000 if (qemu_vmstop_requested(&r)) {
2001 vm_stop(r);
2003 return false;
2006 static void main_loop(void)
2008 bool nonblocking;
2009 int last_io = 0;
2010 #ifdef CONFIG_PROFILER
2011 int64_t ti;
2012 #endif
2013 do {
2014 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
2015 #ifdef CONFIG_PROFILER
2016 ti = profile_getclock();
2017 #endif
2018 last_io = main_loop_wait(nonblocking);
2019 #ifdef CONFIG_PROFILER
2020 dev_time += profile_getclock() - ti;
2021 #endif
2022 } while (!main_loop_should_exit());
2025 static void version(void)
2027 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2030 static void help(int exitcode)
2032 version();
2033 printf("usage: %s [options] [disk_image]\n\n"
2034 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
2035 error_get_progname());
2037 #define QEMU_OPTIONS_GENERATE_HELP
2038 #include "qemu-options-wrapper.h"
2040 printf("\nDuring emulation, the following keys are useful:\n"
2041 "ctrl-alt-f toggle full screen\n"
2042 "ctrl-alt-n switch to virtual console 'n'\n"
2043 "ctrl-alt toggle mouse and keyboard grab\n"
2044 "\n"
2045 "When using -nographic, press 'ctrl-a h' to get some help.\n");
2047 exit(exitcode);
2050 #define HAS_ARG 0x0001
2052 typedef struct QEMUOption {
2053 const char *name;
2054 int flags;
2055 int index;
2056 uint32_t arch_mask;
2057 } QEMUOption;
2059 static const QEMUOption qemu_options[] = {
2060 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2061 #define QEMU_OPTIONS_GENERATE_OPTIONS
2062 #include "qemu-options-wrapper.h"
2063 { NULL },
2066 static bool vga_available(void)
2068 return object_class_by_name("VGA") || object_class_by_name("isa-vga");
2071 static bool cirrus_vga_available(void)
2073 return object_class_by_name("cirrus-vga")
2074 || object_class_by_name("isa-cirrus-vga");
2077 static bool vmware_vga_available(void)
2079 return object_class_by_name("vmware-svga");
2082 static bool qxl_vga_available(void)
2084 return object_class_by_name("qxl-vga");
2087 static void select_vgahw (const char *p)
2089 const char *opts;
2091 vga_interface_type = VGA_NONE;
2092 if (strstart(p, "std", &opts)) {
2093 if (vga_available()) {
2094 vga_interface_type = VGA_STD;
2095 } else {
2096 fprintf(stderr, "Error: standard VGA not available\n");
2097 exit(0);
2099 } else if (strstart(p, "cirrus", &opts)) {
2100 if (cirrus_vga_available()) {
2101 vga_interface_type = VGA_CIRRUS;
2102 } else {
2103 fprintf(stderr, "Error: Cirrus VGA not available\n");
2104 exit(0);
2106 } else if (strstart(p, "vmware", &opts)) {
2107 if (vmware_vga_available()) {
2108 vga_interface_type = VGA_VMWARE;
2109 } else {
2110 fprintf(stderr, "Error: VMWare SVGA not available\n");
2111 exit(0);
2113 } else if (strstart(p, "xenfb", &opts)) {
2114 vga_interface_type = VGA_XENFB;
2115 } else if (strstart(p, "qxl", &opts)) {
2116 if (qxl_vga_available()) {
2117 vga_interface_type = VGA_QXL;
2118 } else {
2119 fprintf(stderr, "Error: QXL VGA not available\n");
2120 exit(0);
2122 } else if (!strstart(p, "none", &opts)) {
2123 invalid_vga:
2124 fprintf(stderr, "Unknown vga type: %s\n", p);
2125 exit(1);
2127 while (*opts) {
2128 const char *nextopt;
2130 if (strstart(opts, ",retrace=", &nextopt)) {
2131 opts = nextopt;
2132 if (strstart(opts, "dumb", &nextopt))
2133 vga_retrace_method = VGA_RETRACE_DUMB;
2134 else if (strstart(opts, "precise", &nextopt))
2135 vga_retrace_method = VGA_RETRACE_PRECISE;
2136 else goto invalid_vga;
2137 } else goto invalid_vga;
2138 opts = nextopt;
2142 static DisplayType select_display(const char *p)
2144 const char *opts;
2145 DisplayType display = DT_DEFAULT;
2147 if (strstart(p, "sdl", &opts)) {
2148 #ifdef CONFIG_SDL
2149 display = DT_SDL;
2150 while (*opts) {
2151 const char *nextopt;
2153 if (strstart(opts, ",frame=", &nextopt)) {
2154 opts = nextopt;
2155 if (strstart(opts, "on", &nextopt)) {
2156 no_frame = 0;
2157 } else if (strstart(opts, "off", &nextopt)) {
2158 no_frame = 1;
2159 } else {
2160 goto invalid_sdl_args;
2162 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2163 opts = nextopt;
2164 if (strstart(opts, "on", &nextopt)) {
2165 alt_grab = 1;
2166 } else if (strstart(opts, "off", &nextopt)) {
2167 alt_grab = 0;
2168 } else {
2169 goto invalid_sdl_args;
2171 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2172 opts = nextopt;
2173 if (strstart(opts, "on", &nextopt)) {
2174 ctrl_grab = 1;
2175 } else if (strstart(opts, "off", &nextopt)) {
2176 ctrl_grab = 0;
2177 } else {
2178 goto invalid_sdl_args;
2180 } else if (strstart(opts, ",window_close=", &nextopt)) {
2181 opts = nextopt;
2182 if (strstart(opts, "on", &nextopt)) {
2183 no_quit = 0;
2184 } else if (strstart(opts, "off", &nextopt)) {
2185 no_quit = 1;
2186 } else {
2187 goto invalid_sdl_args;
2189 } else {
2190 invalid_sdl_args:
2191 fprintf(stderr, "Invalid SDL option string: %s\n", p);
2192 exit(1);
2194 opts = nextopt;
2196 #else
2197 fprintf(stderr, "SDL support is disabled\n");
2198 exit(1);
2199 #endif
2200 } else if (strstart(p, "vnc", &opts)) {
2201 #ifdef CONFIG_VNC
2202 display_remote++;
2204 if (*opts) {
2205 const char *nextopt;
2207 if (strstart(opts, "=", &nextopt)) {
2208 vnc_display = nextopt;
2211 if (!vnc_display) {
2212 fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
2213 exit(1);
2215 #else
2216 fprintf(stderr, "VNC support is disabled\n");
2217 exit(1);
2218 #endif
2219 } else if (strstart(p, "curses", &opts)) {
2220 #ifdef CONFIG_CURSES
2221 display = DT_CURSES;
2222 #else
2223 fprintf(stderr, "Curses support is disabled\n");
2224 exit(1);
2225 #endif
2226 } else if (strstart(p, "gtk", &opts)) {
2227 #ifdef CONFIG_GTK
2228 display = DT_GTK;
2229 #else
2230 fprintf(stderr, "GTK support is disabled\n");
2231 exit(1);
2232 #endif
2233 } else if (strstart(p, "none", &opts)) {
2234 display = DT_NONE;
2235 } else {
2236 fprintf(stderr, "Unknown display type: %s\n", p);
2237 exit(1);
2240 return display;
2243 static int balloon_parse(const char *arg)
2245 QemuOpts *opts;
2247 if (strcmp(arg, "none") == 0) {
2248 return 0;
2251 if (!strncmp(arg, "virtio", 6)) {
2252 if (arg[6] == ',') {
2253 /* have params -> parse them */
2254 opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
2255 if (!opts)
2256 return -1;
2257 } else {
2258 /* create empty opts */
2259 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2260 &error_abort);
2262 qemu_opt_set(opts, "driver", "virtio-balloon");
2263 return 0;
2266 return -1;
2269 char *qemu_find_file(int type, const char *name)
2271 int i;
2272 const char *subdir;
2273 char *buf;
2275 /* Try the name as a straight path first */
2276 if (access(name, R_OK) == 0) {
2277 trace_load_file(name, name);
2278 return g_strdup(name);
2281 switch (type) {
2282 case QEMU_FILE_TYPE_BIOS:
2283 subdir = "";
2284 break;
2285 case QEMU_FILE_TYPE_KEYMAP:
2286 subdir = "keymaps/";
2287 break;
2288 default:
2289 abort();
2292 for (i = 0; i < data_dir_idx; i++) {
2293 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2294 if (access(buf, R_OK) == 0) {
2295 trace_load_file(name, buf);
2296 return buf;
2298 g_free(buf);
2300 return NULL;
2303 static int device_help_func(QemuOpts *opts, void *opaque)
2305 return qdev_device_help(opts);
2308 static int device_init_func(QemuOpts *opts, void *opaque)
2310 DeviceState *dev;
2312 dev = qdev_device_add(opts);
2313 if (!dev)
2314 return -1;
2315 object_unref(OBJECT(dev));
2316 return 0;
2319 static int chardev_init_func(QemuOpts *opts, void *opaque)
2321 Error *local_err = NULL;
2323 qemu_chr_new_from_opts(opts, NULL, &local_err);
2324 if (error_is_set(&local_err)) {
2325 error_report("%s", error_get_pretty(local_err));
2326 error_free(local_err);
2327 return -1;
2329 return 0;
2332 #ifdef CONFIG_VIRTFS
2333 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2335 int ret;
2336 ret = qemu_fsdev_add(opts);
2338 return ret;
2340 #endif
2342 static int mon_init_func(QemuOpts *opts, void *opaque)
2344 CharDriverState *chr;
2345 const char *chardev;
2346 const char *mode;
2347 int flags;
2349 mode = qemu_opt_get(opts, "mode");
2350 if (mode == NULL) {
2351 mode = "readline";
2353 if (strcmp(mode, "readline") == 0) {
2354 flags = MONITOR_USE_READLINE;
2355 } else if (strcmp(mode, "control") == 0) {
2356 flags = MONITOR_USE_CONTROL;
2357 } else {
2358 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2359 exit(1);
2362 if (qemu_opt_get_bool(opts, "pretty", 0))
2363 flags |= MONITOR_USE_PRETTY;
2365 if (qemu_opt_get_bool(opts, "default", 0))
2366 flags |= MONITOR_IS_DEFAULT;
2368 chardev = qemu_opt_get(opts, "chardev");
2369 chr = qemu_chr_find(chardev);
2370 if (chr == NULL) {
2371 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2372 exit(1);
2375 qemu_chr_fe_claim_no_fail(chr);
2376 monitor_init(chr, flags);
2377 return 0;
2380 static void monitor_parse(const char *optarg, const char *mode)
2382 static int monitor_device_index = 0;
2383 QemuOpts *opts;
2384 const char *p;
2385 char label[32];
2386 int def = 0;
2388 if (strstart(optarg, "chardev:", &p)) {
2389 snprintf(label, sizeof(label), "%s", p);
2390 } else {
2391 snprintf(label, sizeof(label), "compat_monitor%d",
2392 monitor_device_index);
2393 if (monitor_device_index == 0) {
2394 def = 1;
2396 opts = qemu_chr_parse_compat(label, optarg);
2397 if (!opts) {
2398 fprintf(stderr, "parse error: %s\n", optarg);
2399 exit(1);
2403 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, NULL);
2404 if (!opts) {
2405 fprintf(stderr, "duplicate chardev: %s\n", label);
2406 exit(1);
2408 qemu_opt_set(opts, "mode", mode);
2409 qemu_opt_set(opts, "chardev", label);
2410 if (def)
2411 qemu_opt_set(opts, "default", "on");
2412 monitor_device_index++;
2415 struct device_config {
2416 enum {
2417 DEV_USB, /* -usbdevice */
2418 DEV_BT, /* -bt */
2419 DEV_SERIAL, /* -serial */
2420 DEV_PARALLEL, /* -parallel */
2421 DEV_VIRTCON, /* -virtioconsole */
2422 DEV_DEBUGCON, /* -debugcon */
2423 DEV_GDB, /* -gdb, -s */
2424 DEV_SCLP, /* s390 sclp */
2425 } type;
2426 const char *cmdline;
2427 Location loc;
2428 QTAILQ_ENTRY(device_config) next;
2431 static QTAILQ_HEAD(, device_config) device_configs =
2432 QTAILQ_HEAD_INITIALIZER(device_configs);
2434 static void add_device_config(int type, const char *cmdline)
2436 struct device_config *conf;
2438 conf = g_malloc0(sizeof(*conf));
2439 conf->type = type;
2440 conf->cmdline = cmdline;
2441 loc_save(&conf->loc);
2442 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2445 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2447 struct device_config *conf;
2448 int rc;
2450 QTAILQ_FOREACH(conf, &device_configs, next) {
2451 if (conf->type != type)
2452 continue;
2453 loc_push_restore(&conf->loc);
2454 rc = func(conf->cmdline);
2455 loc_pop(&conf->loc);
2456 if (0 != rc)
2457 return rc;
2459 return 0;
2462 static int serial_parse(const char *devname)
2464 static int index = 0;
2465 char label[32];
2467 if (strcmp(devname, "none") == 0)
2468 return 0;
2469 if (index == MAX_SERIAL_PORTS) {
2470 fprintf(stderr, "qemu: too many serial ports\n");
2471 exit(1);
2473 snprintf(label, sizeof(label), "serial%d", index);
2474 serial_hds[index] = qemu_chr_new(label, devname, NULL);
2475 if (!serial_hds[index]) {
2476 fprintf(stderr, "qemu: could not connect serial device"
2477 " to character backend '%s'\n", devname);
2478 return -1;
2480 index++;
2481 return 0;
2484 static int parallel_parse(const char *devname)
2486 static int index = 0;
2487 char label[32];
2489 if (strcmp(devname, "none") == 0)
2490 return 0;
2491 if (index == MAX_PARALLEL_PORTS) {
2492 fprintf(stderr, "qemu: too many parallel ports\n");
2493 exit(1);
2495 snprintf(label, sizeof(label), "parallel%d", index);
2496 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2497 if (!parallel_hds[index]) {
2498 fprintf(stderr, "qemu: could not connect parallel device"
2499 " to character backend '%s'\n", devname);
2500 return -1;
2502 index++;
2503 return 0;
2506 static int virtcon_parse(const char *devname)
2508 QemuOptsList *device = qemu_find_opts("device");
2509 static int index = 0;
2510 char label[32];
2511 QemuOpts *bus_opts, *dev_opts;
2513 if (strcmp(devname, "none") == 0)
2514 return 0;
2515 if (index == MAX_VIRTIO_CONSOLES) {
2516 fprintf(stderr, "qemu: too many virtio consoles\n");
2517 exit(1);
2520 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2521 if (arch_type == QEMU_ARCH_S390X) {
2522 qemu_opt_set(bus_opts, "driver", "virtio-serial-s390");
2523 } else {
2524 qemu_opt_set(bus_opts, "driver", "virtio-serial-pci");
2527 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2528 qemu_opt_set(dev_opts, "driver", "virtconsole");
2530 snprintf(label, sizeof(label), "virtcon%d", index);
2531 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2532 if (!virtcon_hds[index]) {
2533 fprintf(stderr, "qemu: could not connect virtio console"
2534 " to character backend '%s'\n", devname);
2535 return -1;
2537 qemu_opt_set(dev_opts, "chardev", label);
2539 index++;
2540 return 0;
2543 static int sclp_parse(const char *devname)
2545 QemuOptsList *device = qemu_find_opts("device");
2546 static int index = 0;
2547 char label[32];
2548 QemuOpts *dev_opts;
2550 if (strcmp(devname, "none") == 0) {
2551 return 0;
2553 if (index == MAX_SCLP_CONSOLES) {
2554 fprintf(stderr, "qemu: too many sclp consoles\n");
2555 exit(1);
2558 assert(arch_type == QEMU_ARCH_S390X);
2560 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2561 qemu_opt_set(dev_opts, "driver", "sclpconsole");
2563 snprintf(label, sizeof(label), "sclpcon%d", index);
2564 sclp_hds[index] = qemu_chr_new(label, devname, NULL);
2565 if (!sclp_hds[index]) {
2566 fprintf(stderr, "qemu: could not connect sclp console"
2567 " to character backend '%s'\n", devname);
2568 return -1;
2570 qemu_opt_set(dev_opts, "chardev", label);
2572 index++;
2573 return 0;
2576 static int debugcon_parse(const char *devname)
2578 QemuOpts *opts;
2580 if (!qemu_chr_new("debugcon", devname, NULL)) {
2581 exit(1);
2583 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2584 if (!opts) {
2585 fprintf(stderr, "qemu: already have a debugcon device\n");
2586 exit(1);
2588 qemu_opt_set(opts, "driver", "isa-debugcon");
2589 qemu_opt_set(opts, "chardev", "debugcon");
2590 return 0;
2593 static QEMUMachine *machine_parse(const char *name)
2595 QEMUMachine *m, *machine = NULL;
2597 if (name) {
2598 machine = find_machine(name);
2600 if (machine) {
2601 return machine;
2603 printf("Supported machines are:\n");
2604 for (m = first_machine; m != NULL; m = m->next) {
2605 if (m->alias) {
2606 printf("%-20s %s (alias of %s)\n", m->alias, m->desc, m->name);
2608 printf("%-20s %s%s\n", m->name, m->desc,
2609 m->is_default ? " (default)" : "");
2611 exit(!name || !is_help_option(name));
2614 static int tcg_init(void)
2616 tcg_exec_init(tcg_tb_size * 1024 * 1024);
2617 return 0;
2620 static struct {
2621 const char *opt_name;
2622 const char *name;
2623 int (*available)(void);
2624 int (*init)(void);
2625 bool *allowed;
2626 } accel_list[] = {
2627 { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
2628 { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2629 { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2630 { "qtest", "QTest", qtest_available, qtest_init_accel, &qtest_allowed },
2633 static int configure_accelerator(void)
2635 const char *p;
2636 char buf[10];
2637 int i, ret;
2638 bool accel_initialised = false;
2639 bool init_failed = false;
2641 p = qemu_opt_get(qemu_get_machine_opts(), "accel");
2642 if (p == NULL) {
2643 /* Use the default "accelerator", tcg */
2644 p = "tcg";
2647 while (!accel_initialised && *p != '\0') {
2648 if (*p == ':') {
2649 p++;
2651 p = get_opt_name(buf, sizeof (buf), p, ':');
2652 for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2653 if (strcmp(accel_list[i].opt_name, buf) == 0) {
2654 if (!accel_list[i].available()) {
2655 printf("%s not supported for this target\n",
2656 accel_list[i].name);
2657 continue;
2659 *(accel_list[i].allowed) = true;
2660 ret = accel_list[i].init();
2661 if (ret < 0) {
2662 init_failed = true;
2663 fprintf(stderr, "failed to initialize %s: %s\n",
2664 accel_list[i].name,
2665 strerror(-ret));
2666 *(accel_list[i].allowed) = false;
2667 } else {
2668 accel_initialised = true;
2670 break;
2673 if (i == ARRAY_SIZE(accel_list)) {
2674 fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2678 if (!accel_initialised) {
2679 if (!init_failed) {
2680 fprintf(stderr, "No accelerator found!\n");
2682 exit(1);
2685 if (init_failed) {
2686 fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2689 return !accel_initialised;
2692 void qemu_add_exit_notifier(Notifier *notify)
2694 notifier_list_add(&exit_notifiers, notify);
2697 void qemu_remove_exit_notifier(Notifier *notify)
2699 notifier_remove(notify);
2702 static void qemu_run_exit_notifiers(void)
2704 notifier_list_notify(&exit_notifiers, NULL);
2707 void qemu_add_machine_init_done_notifier(Notifier *notify)
2709 notifier_list_add(&machine_init_done_notifiers, notify);
2712 static void qemu_run_machine_init_done_notifiers(void)
2714 notifier_list_notify(&machine_init_done_notifiers, NULL);
2717 static const QEMUOption *lookup_opt(int argc, char **argv,
2718 const char **poptarg, int *poptind)
2720 const QEMUOption *popt;
2721 int optind = *poptind;
2722 char *r = argv[optind];
2723 const char *optarg;
2725 loc_set_cmdline(argv, optind, 1);
2726 optind++;
2727 /* Treat --foo the same as -foo. */
2728 if (r[1] == '-')
2729 r++;
2730 popt = qemu_options;
2731 for(;;) {
2732 if (!popt->name) {
2733 error_report("invalid option");
2734 exit(1);
2736 if (!strcmp(popt->name, r + 1))
2737 break;
2738 popt++;
2740 if (popt->flags & HAS_ARG) {
2741 if (optind >= argc) {
2742 error_report("requires an argument");
2743 exit(1);
2745 optarg = argv[optind++];
2746 loc_set_cmdline(argv, optind - 2, 2);
2747 } else {
2748 optarg = NULL;
2751 *poptarg = optarg;
2752 *poptind = optind;
2754 return popt;
2757 static gpointer malloc_and_trace(gsize n_bytes)
2759 void *ptr = malloc(n_bytes);
2760 trace_g_malloc(n_bytes, ptr);
2761 return ptr;
2764 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2766 void *ptr = realloc(mem, n_bytes);
2767 trace_g_realloc(mem, n_bytes, ptr);
2768 return ptr;
2771 static void free_and_trace(gpointer mem)
2773 trace_g_free(mem);
2774 free(mem);
2777 static int object_set_property(const char *name, const char *value, void *opaque)
2779 Object *obj = OBJECT(opaque);
2780 StringInputVisitor *siv;
2781 Error *local_err = NULL;
2783 if (strcmp(name, "qom-type") == 0 || strcmp(name, "id") == 0) {
2784 return 0;
2787 siv = string_input_visitor_new(value);
2788 object_property_set(obj, string_input_get_visitor(siv), name, &local_err);
2789 string_input_visitor_cleanup(siv);
2791 if (local_err) {
2792 qerror_report_err(local_err);
2793 error_free(local_err);
2794 return -1;
2797 return 0;
2800 static int object_create(QemuOpts *opts, void *opaque)
2802 const char *type = qemu_opt_get(opts, "qom-type");
2803 const char *id = qemu_opts_id(opts);
2804 Error *local_err = NULL;
2805 Object *obj;
2807 g_assert(type != NULL);
2809 if (id == NULL) {
2810 qerror_report(QERR_MISSING_PARAMETER, "id");
2811 return -1;
2814 obj = object_new(type);
2815 if (qemu_opt_foreach(opts, object_set_property, obj, 1) < 0) {
2816 object_unref(obj);
2817 return -1;
2820 if (!object_dynamic_cast(obj, TYPE_USER_CREATABLE)) {
2821 error_setg(&local_err, "object '%s' isn't supported by -object",
2822 id);
2823 goto out;
2826 user_creatable_complete(obj, &local_err);
2827 if (local_err) {
2828 goto out;
2831 object_property_add_child(container_get(object_get_root(), "/objects"),
2832 id, obj, &local_err);
2834 out:
2835 object_unref(obj);
2836 if (local_err) {
2837 qerror_report_err(local_err);
2838 error_free(local_err);
2839 return -1;
2841 return 0;
2844 int main(int argc, char **argv, char **envp)
2846 int i;
2847 int snapshot, linux_boot;
2848 const char *icount_option = NULL;
2849 const char *initrd_filename;
2850 const char *kernel_filename, *kernel_cmdline;
2851 const char *boot_order;
2852 DisplayState *ds;
2853 int cyls, heads, secs, translation;
2854 QemuOpts *hda_opts = NULL, *opts, *machine_opts;
2855 QemuOptsList *olist;
2856 int optind;
2857 const char *optarg;
2858 const char *loadvm = NULL;
2859 QEMUMachine *machine;
2860 const char *cpu_model;
2861 const char *vga_model = "none";
2862 const char *qtest_chrdev = NULL;
2863 const char *qtest_log = NULL;
2864 const char *pid_file = NULL;
2865 const char *incoming = NULL;
2866 #ifdef CONFIG_VNC
2867 int show_vnc_port = 0;
2868 #endif
2869 bool defconfig = true;
2870 bool userconfig = true;
2871 const char *log_mask = NULL;
2872 const char *log_file = NULL;
2873 GMemVTable mem_trace = {
2874 .malloc = malloc_and_trace,
2875 .realloc = realloc_and_trace,
2876 .free = free_and_trace,
2878 const char *trace_events = NULL;
2879 const char *trace_file = NULL;
2881 atexit(qemu_run_exit_notifiers);
2882 error_set_progname(argv[0]);
2884 g_mem_set_vtable(&mem_trace);
2885 if (!g_thread_supported()) {
2886 #if !GLIB_CHECK_VERSION(2, 31, 0)
2887 g_thread_init(NULL);
2888 #else
2889 fprintf(stderr, "glib threading failed to initialize.\n");
2890 exit(1);
2891 #endif
2894 module_call_init(MODULE_INIT_QOM);
2896 qemu_add_opts(&qemu_drive_opts);
2897 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2898 qemu_add_drive_opts(&qemu_common_drive_opts);
2899 qemu_add_drive_opts(&qemu_drive_opts);
2900 qemu_add_opts(&qemu_chardev_opts);
2901 qemu_add_opts(&qemu_device_opts);
2902 qemu_add_opts(&qemu_netdev_opts);
2903 qemu_add_opts(&qemu_net_opts);
2904 qemu_add_opts(&qemu_rtc_opts);
2905 qemu_add_opts(&qemu_global_opts);
2906 qemu_add_opts(&qemu_mon_opts);
2907 qemu_add_opts(&qemu_trace_opts);
2908 qemu_add_opts(&qemu_option_rom_opts);
2909 qemu_add_opts(&qemu_machine_opts);
2910 qemu_add_opts(&qemu_smp_opts);
2911 qemu_add_opts(&qemu_boot_opts);
2912 qemu_add_opts(&qemu_sandbox_opts);
2913 qemu_add_opts(&qemu_add_fd_opts);
2914 qemu_add_opts(&qemu_object_opts);
2915 qemu_add_opts(&qemu_tpmdev_opts);
2916 qemu_add_opts(&qemu_realtime_opts);
2917 qemu_add_opts(&qemu_msg_opts);
2919 runstate_init();
2921 init_clocks();
2922 rtc_clock = QEMU_CLOCK_HOST;
2924 qemu_init_auxval(envp);
2925 qemu_cache_utils_init();
2927 QLIST_INIT (&vm_change_state_head);
2928 os_setup_early_signal_handling();
2930 module_call_init(MODULE_INIT_MACHINE);
2931 machine = find_default_machine();
2932 cpu_model = NULL;
2933 ram_size = 0;
2934 snapshot = 0;
2935 cyls = heads = secs = 0;
2936 translation = BIOS_ATA_TRANSLATION_AUTO;
2938 for (i = 0; i < MAX_NODES; i++) {
2939 node_mem[i] = 0;
2940 node_cpumask[i] = bitmap_new(MAX_CPUMASK_BITS);
2943 nb_numa_nodes = 0;
2944 nb_nics = 0;
2946 bdrv_init_with_whitelist();
2948 autostart = 1;
2950 /* first pass of option parsing */
2951 optind = 1;
2952 while (optind < argc) {
2953 if (argv[optind][0] != '-') {
2954 /* disk image */
2955 optind++;
2956 continue;
2957 } else {
2958 const QEMUOption *popt;
2960 popt = lookup_opt(argc, argv, &optarg, &optind);
2961 switch (popt->index) {
2962 case QEMU_OPTION_nodefconfig:
2963 defconfig = false;
2964 break;
2965 case QEMU_OPTION_nouserconfig:
2966 userconfig = false;
2967 break;
2972 if (defconfig) {
2973 int ret;
2974 ret = qemu_read_default_config_files(userconfig);
2975 if (ret < 0) {
2976 exit(1);
2980 /* second pass of option parsing */
2981 optind = 1;
2982 for(;;) {
2983 if (optind >= argc)
2984 break;
2985 if (argv[optind][0] != '-') {
2986 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2987 } else {
2988 const QEMUOption *popt;
2990 popt = lookup_opt(argc, argv, &optarg, &optind);
2991 if (!(popt->arch_mask & arch_type)) {
2992 printf("Option %s not supported for this target\n", popt->name);
2993 exit(1);
2995 switch(popt->index) {
2996 case QEMU_OPTION_M:
2997 machine = machine_parse(optarg);
2998 break;
2999 case QEMU_OPTION_no_kvm_irqchip: {
3000 olist = qemu_find_opts("machine");
3001 qemu_opts_parse(olist, "kernel_irqchip=off", 0);
3002 break;
3004 case QEMU_OPTION_cpu:
3005 /* hw initialization will check this */
3006 cpu_model = optarg;
3007 break;
3008 case QEMU_OPTION_hda:
3010 char buf[256];
3011 if (cyls == 0)
3012 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
3013 else
3014 snprintf(buf, sizeof(buf),
3015 "%s,cyls=%d,heads=%d,secs=%d%s",
3016 HD_OPTS , cyls, heads, secs,
3017 translation == BIOS_ATA_TRANSLATION_LBA ?
3018 ",trans=lba" :
3019 translation == BIOS_ATA_TRANSLATION_NONE ?
3020 ",trans=none" : "");
3021 drive_add(IF_DEFAULT, 0, optarg, buf);
3022 break;
3024 case QEMU_OPTION_hdb:
3025 case QEMU_OPTION_hdc:
3026 case QEMU_OPTION_hdd:
3027 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3028 HD_OPTS);
3029 break;
3030 case QEMU_OPTION_drive:
3031 if (drive_def(optarg) == NULL) {
3032 exit(1);
3034 break;
3035 case QEMU_OPTION_set:
3036 if (qemu_set_option(optarg) != 0)
3037 exit(1);
3038 break;
3039 case QEMU_OPTION_global:
3040 if (qemu_global_option(optarg) != 0)
3041 exit(1);
3042 break;
3043 case QEMU_OPTION_mtdblock:
3044 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3045 break;
3046 case QEMU_OPTION_sd:
3047 drive_add(IF_SD, -1, optarg, SD_OPTS);
3048 break;
3049 case QEMU_OPTION_pflash:
3050 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3051 break;
3052 case QEMU_OPTION_snapshot:
3053 snapshot = 1;
3054 break;
3055 case QEMU_OPTION_hdachs:
3057 const char *p;
3058 p = optarg;
3059 cyls = strtol(p, (char **)&p, 0);
3060 if (cyls < 1 || cyls > 16383)
3061 goto chs_fail;
3062 if (*p != ',')
3063 goto chs_fail;
3064 p++;
3065 heads = strtol(p, (char **)&p, 0);
3066 if (heads < 1 || heads > 16)
3067 goto chs_fail;
3068 if (*p != ',')
3069 goto chs_fail;
3070 p++;
3071 secs = strtol(p, (char **)&p, 0);
3072 if (secs < 1 || secs > 63)
3073 goto chs_fail;
3074 if (*p == ',') {
3075 p++;
3076 if (!strcmp(p, "none"))
3077 translation = BIOS_ATA_TRANSLATION_NONE;
3078 else if (!strcmp(p, "lba"))
3079 translation = BIOS_ATA_TRANSLATION_LBA;
3080 else if (!strcmp(p, "auto"))
3081 translation = BIOS_ATA_TRANSLATION_AUTO;
3082 else
3083 goto chs_fail;
3084 } else if (*p != '\0') {
3085 chs_fail:
3086 fprintf(stderr, "qemu: invalid physical CHS format\n");
3087 exit(1);
3089 if (hda_opts != NULL) {
3090 char num[16];
3091 snprintf(num, sizeof(num), "%d", cyls);
3092 qemu_opt_set(hda_opts, "cyls", num);
3093 snprintf(num, sizeof(num), "%d", heads);
3094 qemu_opt_set(hda_opts, "heads", num);
3095 snprintf(num, sizeof(num), "%d", secs);
3096 qemu_opt_set(hda_opts, "secs", num);
3097 if (translation == BIOS_ATA_TRANSLATION_LBA)
3098 qemu_opt_set(hda_opts, "trans", "lba");
3099 if (translation == BIOS_ATA_TRANSLATION_NONE)
3100 qemu_opt_set(hda_opts, "trans", "none");
3103 break;
3104 case QEMU_OPTION_numa:
3105 numa_add(optarg);
3106 break;
3107 case QEMU_OPTION_display:
3108 display_type = select_display(optarg);
3109 break;
3110 case QEMU_OPTION_nographic:
3111 display_type = DT_NOGRAPHIC;
3112 break;
3113 case QEMU_OPTION_curses:
3114 #ifdef CONFIG_CURSES
3115 display_type = DT_CURSES;
3116 #else
3117 fprintf(stderr, "Curses support is disabled\n");
3118 exit(1);
3119 #endif
3120 break;
3121 case QEMU_OPTION_portrait:
3122 graphic_rotate = 90;
3123 break;
3124 case QEMU_OPTION_rotate:
3125 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3126 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3127 graphic_rotate != 180 && graphic_rotate != 270) {
3128 fprintf(stderr,
3129 "qemu: only 90, 180, 270 deg rotation is available\n");
3130 exit(1);
3132 break;
3133 case QEMU_OPTION_kernel:
3134 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg);
3135 break;
3136 case QEMU_OPTION_initrd:
3137 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg);
3138 break;
3139 case QEMU_OPTION_append:
3140 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg);
3141 break;
3142 case QEMU_OPTION_dtb:
3143 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg);
3144 break;
3145 case QEMU_OPTION_cdrom:
3146 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3147 break;
3148 case QEMU_OPTION_boot:
3149 opts = qemu_opts_parse(qemu_find_opts("boot-opts"), optarg, 1);
3150 if (!opts) {
3151 exit(1);
3153 break;
3154 case QEMU_OPTION_fda:
3155 case QEMU_OPTION_fdb:
3156 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3157 optarg, FD_OPTS);
3158 break;
3159 case QEMU_OPTION_no_fd_bootchk:
3160 fd_bootchk = 0;
3161 break;
3162 case QEMU_OPTION_netdev:
3163 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3164 exit(1);
3166 break;
3167 case QEMU_OPTION_net:
3168 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3169 exit(1);
3171 break;
3172 #ifdef CONFIG_LIBISCSI
3173 case QEMU_OPTION_iscsi:
3174 opts = qemu_opts_parse(qemu_find_opts("iscsi"), optarg, 0);
3175 if (!opts) {
3176 exit(1);
3178 break;
3179 #endif
3180 #ifdef CONFIG_SLIRP
3181 case QEMU_OPTION_tftp:
3182 legacy_tftp_prefix = optarg;
3183 break;
3184 case QEMU_OPTION_bootp:
3185 legacy_bootp_filename = optarg;
3186 break;
3187 case QEMU_OPTION_redir:
3188 if (net_slirp_redir(optarg) < 0)
3189 exit(1);
3190 break;
3191 #endif
3192 case QEMU_OPTION_bt:
3193 add_device_config(DEV_BT, optarg);
3194 break;
3195 case QEMU_OPTION_audio_help:
3196 AUD_help ();
3197 exit (0);
3198 break;
3199 case QEMU_OPTION_soundhw:
3200 select_soundhw (optarg);
3201 break;
3202 case QEMU_OPTION_h:
3203 help(0);
3204 break;
3205 case QEMU_OPTION_version:
3206 version();
3207 exit(0);
3208 break;
3209 case QEMU_OPTION_m: {
3210 int64_t value;
3211 uint64_t sz;
3212 char *end;
3214 value = strtosz(optarg, &end);
3215 if (value < 0 || *end) {
3216 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
3217 exit(1);
3219 sz = QEMU_ALIGN_UP((uint64_t)value, 8192);
3220 ram_size = sz;
3221 if (ram_size != sz) {
3222 fprintf(stderr, "qemu: ram size too large\n");
3223 exit(1);
3225 break;
3227 #ifdef CONFIG_TPM
3228 case QEMU_OPTION_tpmdev:
3229 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3230 exit(1);
3232 break;
3233 #endif
3234 case QEMU_OPTION_mempath:
3235 mem_path = optarg;
3236 break;
3237 case QEMU_OPTION_mem_prealloc:
3238 mem_prealloc = 1;
3239 break;
3240 case QEMU_OPTION_d:
3241 log_mask = optarg;
3242 break;
3243 case QEMU_OPTION_D:
3244 log_file = optarg;
3245 break;
3246 case QEMU_OPTION_s:
3247 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3248 break;
3249 case QEMU_OPTION_gdb:
3250 add_device_config(DEV_GDB, optarg);
3251 break;
3252 case QEMU_OPTION_L:
3253 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3254 data_dir[data_dir_idx++] = optarg;
3256 break;
3257 case QEMU_OPTION_bios:
3258 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg);
3259 break;
3260 case QEMU_OPTION_singlestep:
3261 singlestep = 1;
3262 break;
3263 case QEMU_OPTION_S:
3264 autostart = 0;
3265 break;
3266 case QEMU_OPTION_k:
3267 keyboard_layout = optarg;
3268 break;
3269 case QEMU_OPTION_localtime:
3270 rtc_utc = 0;
3271 break;
3272 case QEMU_OPTION_vga:
3273 vga_model = optarg;
3274 default_vga = 0;
3275 break;
3276 case QEMU_OPTION_g:
3278 const char *p;
3279 int w, h, depth;
3280 p = optarg;
3281 w = strtol(p, (char **)&p, 10);
3282 if (w <= 0) {
3283 graphic_error:
3284 fprintf(stderr, "qemu: invalid resolution or depth\n");
3285 exit(1);
3287 if (*p != 'x')
3288 goto graphic_error;
3289 p++;
3290 h = strtol(p, (char **)&p, 10);
3291 if (h <= 0)
3292 goto graphic_error;
3293 if (*p == 'x') {
3294 p++;
3295 depth = strtol(p, (char **)&p, 10);
3296 if (depth != 8 && depth != 15 && depth != 16 &&
3297 depth != 24 && depth != 32)
3298 goto graphic_error;
3299 } else if (*p == '\0') {
3300 depth = graphic_depth;
3301 } else {
3302 goto graphic_error;
3305 graphic_width = w;
3306 graphic_height = h;
3307 graphic_depth = depth;
3309 break;
3310 case QEMU_OPTION_echr:
3312 char *r;
3313 term_escape_char = strtol(optarg, &r, 0);
3314 if (r == optarg)
3315 printf("Bad argument to echr\n");
3316 break;
3318 case QEMU_OPTION_monitor:
3319 default_monitor = 0;
3320 if (strncmp(optarg, "none", 4)) {
3321 monitor_parse(optarg, "readline");
3323 break;
3324 case QEMU_OPTION_qmp:
3325 monitor_parse(optarg, "control");
3326 default_monitor = 0;
3327 break;
3328 case QEMU_OPTION_mon:
3329 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
3330 if (!opts) {
3331 exit(1);
3333 default_monitor = 0;
3334 break;
3335 case QEMU_OPTION_chardev:
3336 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
3337 if (!opts) {
3338 exit(1);
3340 break;
3341 case QEMU_OPTION_fsdev:
3342 olist = qemu_find_opts("fsdev");
3343 if (!olist) {
3344 fprintf(stderr, "fsdev is not supported by this qemu build.\n");
3345 exit(1);
3347 opts = qemu_opts_parse(olist, optarg, 1);
3348 if (!opts) {
3349 exit(1);
3351 break;
3352 case QEMU_OPTION_virtfs: {
3353 QemuOpts *fsdev;
3354 QemuOpts *device;
3355 const char *writeout, *sock_fd, *socket;
3357 olist = qemu_find_opts("virtfs");
3358 if (!olist) {
3359 fprintf(stderr, "virtfs is not supported by this qemu build.\n");
3360 exit(1);
3362 opts = qemu_opts_parse(olist, optarg, 1);
3363 if (!opts) {
3364 exit(1);
3367 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3368 qemu_opt_get(opts, "mount_tag") == NULL) {
3369 fprintf(stderr, "Usage: -virtfs fsdriver,mount_tag=tag.\n");
3370 exit(1);
3372 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3373 qemu_opt_get(opts, "mount_tag"),
3374 1, NULL);
3375 if (!fsdev) {
3376 fprintf(stderr, "duplicate fsdev id: %s\n",
3377 qemu_opt_get(opts, "mount_tag"));
3378 exit(1);
3381 writeout = qemu_opt_get(opts, "writeout");
3382 if (writeout) {
3383 #ifdef CONFIG_SYNC_FILE_RANGE
3384 qemu_opt_set(fsdev, "writeout", writeout);
3385 #else
3386 fprintf(stderr, "writeout=immediate not supported on "
3387 "this platform\n");
3388 exit(1);
3389 #endif
3391 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
3392 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
3393 qemu_opt_set(fsdev, "security_model",
3394 qemu_opt_get(opts, "security_model"));
3395 socket = qemu_opt_get(opts, "socket");
3396 if (socket) {
3397 qemu_opt_set(fsdev, "socket", socket);
3399 sock_fd = qemu_opt_get(opts, "sock_fd");
3400 if (sock_fd) {
3401 qemu_opt_set(fsdev, "sock_fd", sock_fd);
3404 qemu_opt_set_bool(fsdev, "readonly",
3405 qemu_opt_get_bool(opts, "readonly", 0));
3406 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3407 &error_abort);
3408 qemu_opt_set(device, "driver", "virtio-9p-pci");
3409 qemu_opt_set(device, "fsdev",
3410 qemu_opt_get(opts, "mount_tag"));
3411 qemu_opt_set(device, "mount_tag",
3412 qemu_opt_get(opts, "mount_tag"));
3413 break;
3415 case QEMU_OPTION_virtfs_synth: {
3416 QemuOpts *fsdev;
3417 QemuOpts *device;
3419 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3420 1, NULL);
3421 if (!fsdev) {
3422 fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
3423 exit(1);
3425 qemu_opt_set(fsdev, "fsdriver", "synth");
3427 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3428 &error_abort);
3429 qemu_opt_set(device, "driver", "virtio-9p-pci");
3430 qemu_opt_set(device, "fsdev", "v_synth");
3431 qemu_opt_set(device, "mount_tag", "v_synth");
3432 break;
3434 case QEMU_OPTION_serial:
3435 add_device_config(DEV_SERIAL, optarg);
3436 default_serial = 0;
3437 if (strncmp(optarg, "mon:", 4) == 0) {
3438 default_monitor = 0;
3440 break;
3441 case QEMU_OPTION_watchdog:
3442 if (watchdog) {
3443 fprintf(stderr,
3444 "qemu: only one watchdog option may be given\n");
3445 return 1;
3447 watchdog = optarg;
3448 break;
3449 case QEMU_OPTION_watchdog_action:
3450 if (select_watchdog_action(optarg) == -1) {
3451 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3452 exit(1);
3454 break;
3455 case QEMU_OPTION_virtiocon:
3456 add_device_config(DEV_VIRTCON, optarg);
3457 default_virtcon = 0;
3458 if (strncmp(optarg, "mon:", 4) == 0) {
3459 default_monitor = 0;
3461 break;
3462 case QEMU_OPTION_parallel:
3463 add_device_config(DEV_PARALLEL, optarg);
3464 default_parallel = 0;
3465 if (strncmp(optarg, "mon:", 4) == 0) {
3466 default_monitor = 0;
3468 break;
3469 case QEMU_OPTION_debugcon:
3470 add_device_config(DEV_DEBUGCON, optarg);
3471 break;
3472 case QEMU_OPTION_loadvm:
3473 loadvm = optarg;
3474 break;
3475 case QEMU_OPTION_full_screen:
3476 full_screen = 1;
3477 break;
3478 case QEMU_OPTION_no_frame:
3479 no_frame = 1;
3480 break;
3481 case QEMU_OPTION_alt_grab:
3482 alt_grab = 1;
3483 break;
3484 case QEMU_OPTION_ctrl_grab:
3485 ctrl_grab = 1;
3486 break;
3487 case QEMU_OPTION_no_quit:
3488 no_quit = 1;
3489 break;
3490 case QEMU_OPTION_sdl:
3491 #ifdef CONFIG_SDL
3492 display_type = DT_SDL;
3493 break;
3494 #else
3495 fprintf(stderr, "SDL support is disabled\n");
3496 exit(1);
3497 #endif
3498 case QEMU_OPTION_pidfile:
3499 pid_file = optarg;
3500 break;
3501 case QEMU_OPTION_win2k_hack:
3502 win2k_install_hack = 1;
3503 break;
3504 case QEMU_OPTION_rtc_td_hack: {
3505 static GlobalProperty slew_lost_ticks[] = {
3507 .driver = "mc146818rtc",
3508 .property = "lost_tick_policy",
3509 .value = "slew",
3511 { /* end of list */ }
3514 qdev_prop_register_global_list(slew_lost_ticks);
3515 break;
3517 case QEMU_OPTION_acpitable:
3518 opts = qemu_opts_parse(qemu_find_opts("acpi"), optarg, 1);
3519 if (!opts) {
3520 exit(1);
3522 do_acpitable_option(opts);
3523 break;
3524 case QEMU_OPTION_smbios:
3525 opts = qemu_opts_parse(qemu_find_opts("smbios"), optarg, 0);
3526 if (!opts) {
3527 exit(1);
3529 do_smbios_option(opts);
3530 break;
3531 case QEMU_OPTION_enable_kvm:
3532 olist = qemu_find_opts("machine");
3533 qemu_opts_parse(olist, "accel=kvm", 0);
3534 break;
3535 case QEMU_OPTION_machine:
3536 olist = qemu_find_opts("machine");
3537 opts = qemu_opts_parse(olist, optarg, 1);
3538 if (!opts) {
3539 exit(1);
3541 optarg = qemu_opt_get(opts, "type");
3542 if (optarg) {
3543 machine = machine_parse(optarg);
3545 break;
3546 case QEMU_OPTION_no_kvm:
3547 olist = qemu_find_opts("machine");
3548 qemu_opts_parse(olist, "accel=tcg", 0);
3549 break;
3550 case QEMU_OPTION_no_kvm_pit: {
3551 fprintf(stderr, "Warning: KVM PIT can no longer be disabled "
3552 "separately.\n");
3553 break;
3555 case QEMU_OPTION_no_kvm_pit_reinjection: {
3556 static GlobalProperty kvm_pit_lost_tick_policy[] = {
3558 .driver = "kvm-pit",
3559 .property = "lost_tick_policy",
3560 .value = "discard",
3562 { /* end of list */ }
3565 fprintf(stderr, "Warning: option deprecated, use "
3566 "lost_tick_policy property of kvm-pit instead.\n");
3567 qdev_prop_register_global_list(kvm_pit_lost_tick_policy);
3568 break;
3570 case QEMU_OPTION_usb:
3571 olist = qemu_find_opts("machine");
3572 qemu_opts_parse(olist, "usb=on", 0);
3573 break;
3574 case QEMU_OPTION_usbdevice:
3575 olist = qemu_find_opts("machine");
3576 qemu_opts_parse(olist, "usb=on", 0);
3577 add_device_config(DEV_USB, optarg);
3578 break;
3579 case QEMU_OPTION_device:
3580 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
3581 exit(1);
3583 break;
3584 case QEMU_OPTION_smp:
3585 if (!qemu_opts_parse(qemu_find_opts("smp-opts"), optarg, 1)) {
3586 exit(1);
3588 break;
3589 case QEMU_OPTION_vnc:
3590 #ifdef CONFIG_VNC
3591 display_remote++;
3592 vnc_display = optarg;
3593 #else
3594 fprintf(stderr, "VNC support is disabled\n");
3595 exit(1);
3596 #endif
3597 break;
3598 case QEMU_OPTION_no_acpi:
3599 acpi_enabled = 0;
3600 break;
3601 case QEMU_OPTION_no_hpet:
3602 no_hpet = 1;
3603 break;
3604 case QEMU_OPTION_balloon:
3605 if (balloon_parse(optarg) < 0) {
3606 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3607 exit(1);
3609 break;
3610 case QEMU_OPTION_no_reboot:
3611 no_reboot = 1;
3612 break;
3613 case QEMU_OPTION_no_shutdown:
3614 no_shutdown = 1;
3615 break;
3616 case QEMU_OPTION_show_cursor:
3617 cursor_hide = 0;
3618 break;
3619 case QEMU_OPTION_uuid:
3620 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3621 fprintf(stderr, "Fail to parse UUID string."
3622 " Wrong format.\n");
3623 exit(1);
3625 qemu_uuid_set = true;
3626 break;
3627 case QEMU_OPTION_option_rom:
3628 if (nb_option_roms >= MAX_OPTION_ROMS) {
3629 fprintf(stderr, "Too many option ROMs\n");
3630 exit(1);
3632 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3633 if (!opts) {
3634 exit(1);
3636 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3637 option_rom[nb_option_roms].bootindex =
3638 qemu_opt_get_number(opts, "bootindex", -1);
3639 if (!option_rom[nb_option_roms].name) {
3640 fprintf(stderr, "Option ROM file is not specified\n");
3641 exit(1);
3643 nb_option_roms++;
3644 break;
3645 case QEMU_OPTION_semihosting:
3646 semihosting_enabled = 1;
3647 break;
3648 case QEMU_OPTION_tdf:
3649 fprintf(stderr, "Warning: user space PIT time drift fix "
3650 "is no longer supported.\n");
3651 break;
3652 case QEMU_OPTION_name:
3653 qemu_name = g_strdup(optarg);
3655 char *p = strchr(qemu_name, ',');
3656 if (p != NULL) {
3657 *p++ = 0;
3658 if (strncmp(p, "process=", 8)) {
3659 fprintf(stderr, "Unknown subargument %s to -name\n", p);
3660 exit(1);
3662 p += 8;
3663 os_set_proc_name(p);
3666 break;
3667 case QEMU_OPTION_prom_env:
3668 if (nb_prom_envs >= MAX_PROM_ENVS) {
3669 fprintf(stderr, "Too many prom variables\n");
3670 exit(1);
3672 prom_envs[nb_prom_envs] = optarg;
3673 nb_prom_envs++;
3674 break;
3675 case QEMU_OPTION_old_param:
3676 old_param = 1;
3677 break;
3678 case QEMU_OPTION_clock:
3679 /* Clock options no longer exist. Keep this option for
3680 * backward compatibility.
3682 break;
3683 case QEMU_OPTION_startdate:
3684 configure_rtc_date_offset(optarg, 1);
3685 break;
3686 case QEMU_OPTION_rtc:
3687 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3688 if (!opts) {
3689 exit(1);
3691 configure_rtc(opts);
3692 break;
3693 case QEMU_OPTION_tb_size:
3694 tcg_tb_size = strtol(optarg, NULL, 0);
3695 if (tcg_tb_size < 0) {
3696 tcg_tb_size = 0;
3698 break;
3699 case QEMU_OPTION_icount:
3700 icount_option = optarg;
3701 break;
3702 case QEMU_OPTION_incoming:
3703 incoming = optarg;
3704 runstate_set(RUN_STATE_INMIGRATE);
3705 break;
3706 case QEMU_OPTION_nodefaults:
3707 default_serial = 0;
3708 default_parallel = 0;
3709 default_virtcon = 0;
3710 default_sclp = 0;
3711 default_monitor = 0;
3712 default_net = 0;
3713 default_floppy = 0;
3714 default_cdrom = 0;
3715 default_sdcard = 0;
3716 default_vga = 0;
3717 break;
3718 case QEMU_OPTION_xen_domid:
3719 if (!(xen_available())) {
3720 printf("Option %s not supported for this target\n", popt->name);
3721 exit(1);
3723 xen_domid = atoi(optarg);
3724 break;
3725 case QEMU_OPTION_xen_create:
3726 if (!(xen_available())) {
3727 printf("Option %s not supported for this target\n", popt->name);
3728 exit(1);
3730 xen_mode = XEN_CREATE;
3731 break;
3732 case QEMU_OPTION_xen_attach:
3733 if (!(xen_available())) {
3734 printf("Option %s not supported for this target\n", popt->name);
3735 exit(1);
3737 xen_mode = XEN_ATTACH;
3738 break;
3739 case QEMU_OPTION_trace:
3741 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3742 if (!opts) {
3743 exit(1);
3745 trace_events = qemu_opt_get(opts, "events");
3746 trace_file = qemu_opt_get(opts, "file");
3747 break;
3749 case QEMU_OPTION_readconfig:
3751 int ret = qemu_read_config_file(optarg);
3752 if (ret < 0) {
3753 fprintf(stderr, "read config %s: %s\n", optarg,
3754 strerror(-ret));
3755 exit(1);
3757 break;
3759 case QEMU_OPTION_spice:
3760 olist = qemu_find_opts("spice");
3761 if (!olist) {
3762 fprintf(stderr, "spice is not supported by this qemu build.\n");
3763 exit(1);
3765 opts = qemu_opts_parse(olist, optarg, 0);
3766 if (!opts) {
3767 exit(1);
3769 display_remote++;
3770 break;
3771 case QEMU_OPTION_writeconfig:
3773 FILE *fp;
3774 if (strcmp(optarg, "-") == 0) {
3775 fp = stdout;
3776 } else {
3777 fp = fopen(optarg, "w");
3778 if (fp == NULL) {
3779 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3780 exit(1);
3783 qemu_config_write(fp);
3784 fclose(fp);
3785 break;
3787 case QEMU_OPTION_qtest:
3788 qtest_chrdev = optarg;
3789 break;
3790 case QEMU_OPTION_qtest_log:
3791 qtest_log = optarg;
3792 break;
3793 case QEMU_OPTION_sandbox:
3794 opts = qemu_opts_parse(qemu_find_opts("sandbox"), optarg, 1);
3795 if (!opts) {
3796 exit(1);
3798 break;
3799 case QEMU_OPTION_add_fd:
3800 #ifndef _WIN32
3801 opts = qemu_opts_parse(qemu_find_opts("add-fd"), optarg, 0);
3802 if (!opts) {
3803 exit(1);
3805 #else
3806 error_report("File descriptor passing is disabled on this "
3807 "platform");
3808 exit(1);
3809 #endif
3810 break;
3811 case QEMU_OPTION_object:
3812 opts = qemu_opts_parse(qemu_find_opts("object"), optarg, 1);
3813 if (!opts) {
3814 exit(1);
3816 break;
3817 case QEMU_OPTION_realtime:
3818 opts = qemu_opts_parse(qemu_find_opts("realtime"), optarg, 0);
3819 if (!opts) {
3820 exit(1);
3822 configure_realtime(opts);
3823 break;
3824 case QEMU_OPTION_msg:
3825 opts = qemu_opts_parse(qemu_find_opts("msg"), optarg, 0);
3826 if (!opts) {
3827 exit(1);
3829 configure_msg(opts);
3830 break;
3831 default:
3832 os_parse_cmd_args(popt->index, optarg);
3836 loc_set_none();
3838 if (qemu_init_main_loop()) {
3839 fprintf(stderr, "qemu_init_main_loop failed\n");
3840 exit(1);
3843 if (qemu_opts_foreach(qemu_find_opts("sandbox"), parse_sandbox, NULL, 0)) {
3844 exit(1);
3847 #ifndef _WIN32
3848 if (qemu_opts_foreach(qemu_find_opts("add-fd"), parse_add_fd, NULL, 1)) {
3849 exit(1);
3852 if (qemu_opts_foreach(qemu_find_opts("add-fd"), cleanup_add_fd, NULL, 1)) {
3853 exit(1);
3855 #endif
3857 if (machine == NULL) {
3858 fprintf(stderr, "No machine found.\n");
3859 exit(1);
3862 if (machine->hw_version) {
3863 qemu_set_version(machine->hw_version);
3866 if (qemu_opts_foreach(qemu_find_opts("object"),
3867 object_create, NULL, 0) != 0) {
3868 exit(1);
3871 /* Init CPU def lists, based on config
3872 * - Must be called after all the qemu_read_config_file() calls
3873 * - Must be called before list_cpus()
3874 * - Must be called before machine->init()
3876 cpudef_init();
3878 if (cpu_model && is_help_option(cpu_model)) {
3879 list_cpus(stdout, &fprintf, cpu_model);
3880 exit(0);
3883 /* Open the logfile at this point, if necessary. We can't open the logfile
3884 * when encountering either of the logging options (-d or -D) because the
3885 * other one may be encountered later on the command line, changing the
3886 * location or level of logging.
3888 if (log_mask) {
3889 int mask;
3890 if (log_file) {
3891 qemu_set_log_filename(log_file);
3894 mask = qemu_str_to_log_mask(log_mask);
3895 if (!mask) {
3896 qemu_print_log_usage(stdout);
3897 exit(1);
3899 qemu_set_log(mask);
3902 if (!is_daemonized()) {
3903 if (!trace_backend_init(trace_events, trace_file)) {
3904 exit(1);
3908 /* If no data_dir is specified then try to find it relative to the
3909 executable path. */
3910 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3911 data_dir[data_dir_idx] = os_find_datadir(argv[0]);
3912 if (data_dir[data_dir_idx] != NULL) {
3913 data_dir_idx++;
3916 /* If all else fails use the install path specified when building. */
3917 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3918 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
3921 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3923 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3924 if (smp_cpus > machine->max_cpus) {
3925 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3926 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3927 machine->max_cpus);
3928 exit(1);
3932 * Get the default machine options from the machine if it is not already
3933 * specified either by the configuration file or by the command line.
3935 if (machine->default_machine_opts) {
3936 qemu_opts_set_defaults(qemu_find_opts("machine"),
3937 machine->default_machine_opts, 0);
3940 qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3941 qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3943 if (machine->no_serial) {
3944 default_serial = 0;
3946 if (machine->no_parallel) {
3947 default_parallel = 0;
3949 if (!machine->use_virtcon) {
3950 default_virtcon = 0;
3952 if (!machine->use_sclp) {
3953 default_sclp = 0;
3955 if (machine->no_floppy) {
3956 default_floppy = 0;
3958 if (machine->no_cdrom) {
3959 default_cdrom = 0;
3961 if (machine->no_sdcard) {
3962 default_sdcard = 0;
3965 if (is_daemonized()) {
3966 /* According to documentation and historically, -nographic redirects
3967 * serial port, parallel port and monitor to stdio, which does not work
3968 * with -daemonize. We can redirect these to null instead, but since
3969 * -nographic is legacy, let's just error out.
3970 * We disallow -nographic only if all other ports are not redirected
3971 * explicitly, to not break existing legacy setups which uses
3972 * -nographic _and_ redirects all ports explicitly - this is valid
3973 * usage, -nographic is just a no-op in this case.
3975 if (display_type == DT_NOGRAPHIC
3976 && (default_parallel || default_serial
3977 || default_monitor || default_virtcon)) {
3978 fprintf(stderr, "-nographic can not be used with -daemonize\n");
3979 exit(1);
3981 #ifdef CONFIG_CURSES
3982 if (display_type == DT_CURSES) {
3983 fprintf(stderr, "curses display can not be used with -daemonize\n");
3984 exit(1);
3986 #endif
3989 if (display_type == DT_NOGRAPHIC) {
3990 if (default_parallel)
3991 add_device_config(DEV_PARALLEL, "null");
3992 if (default_serial && default_monitor) {
3993 add_device_config(DEV_SERIAL, "mon:stdio");
3994 } else if (default_virtcon && default_monitor) {
3995 add_device_config(DEV_VIRTCON, "mon:stdio");
3996 } else if (default_sclp && default_monitor) {
3997 add_device_config(DEV_SCLP, "mon:stdio");
3998 } else {
3999 if (default_serial)
4000 add_device_config(DEV_SERIAL, "stdio");
4001 if (default_virtcon)
4002 add_device_config(DEV_VIRTCON, "stdio");
4003 if (default_sclp) {
4004 add_device_config(DEV_SCLP, "stdio");
4006 if (default_monitor)
4007 monitor_parse("stdio", "readline");
4009 } else {
4010 if (default_serial)
4011 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4012 if (default_parallel)
4013 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4014 if (default_monitor)
4015 monitor_parse("vc:80Cx24C", "readline");
4016 if (default_virtcon)
4017 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4018 if (default_sclp) {
4019 add_device_config(DEV_SCLP, "vc:80Cx24C");
4023 if (display_type == DT_DEFAULT && !display_remote) {
4024 #if defined(CONFIG_GTK)
4025 display_type = DT_GTK;
4026 #elif defined(CONFIG_SDL) || defined(CONFIG_COCOA)
4027 display_type = DT_SDL;
4028 #elif defined(CONFIG_VNC)
4029 vnc_display = "localhost:0,to=99";
4030 show_vnc_port = 1;
4031 #else
4032 display_type = DT_NONE;
4033 #endif
4036 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4037 fprintf(stderr, "-no-frame, -alt-grab and -ctrl-grab are only valid "
4038 "for SDL, ignoring option\n");
4040 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4041 fprintf(stderr, "-no-quit is only valid for GTK and SDL, "
4042 "ignoring option\n");
4045 #if defined(CONFIG_GTK)
4046 if (display_type == DT_GTK) {
4047 early_gtk_display_init();
4049 #endif
4051 socket_init();
4053 if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
4054 exit(1);
4055 #ifdef CONFIG_VIRTFS
4056 if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
4057 exit(1);
4059 #endif
4061 os_daemonize();
4063 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4064 os_pidfile_error();
4065 exit(1);
4068 /* init the memory */
4069 if (ram_size == 0) {
4070 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
4073 if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0)
4074 != 0) {
4075 exit(0);
4078 configure_accelerator();
4080 if (qtest_chrdev) {
4081 qtest_init(qtest_chrdev, qtest_log);
4084 machine_opts = qemu_get_machine_opts();
4085 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4086 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4087 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4088 bios_name = qemu_opt_get(machine_opts, "firmware");
4090 boot_order = machine->default_boot_order;
4091 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4092 if (opts) {
4093 char *normal_boot_order;
4094 const char *order, *once;
4096 order = qemu_opt_get(opts, "order");
4097 if (order) {
4098 validate_bootdevices(order);
4099 boot_order = order;
4102 once = qemu_opt_get(opts, "once");
4103 if (once) {
4104 validate_bootdevices(once);
4105 normal_boot_order = g_strdup(boot_order);
4106 boot_order = once;
4107 qemu_register_reset(restore_boot_order, normal_boot_order);
4110 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4111 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4114 if (!kernel_cmdline) {
4115 kernel_cmdline = "";
4118 linux_boot = (kernel_filename != NULL);
4120 if (!linux_boot && *kernel_cmdline != '\0') {
4121 fprintf(stderr, "-append only allowed with -kernel option\n");
4122 exit(1);
4125 if (!linux_boot && initrd_filename != NULL) {
4126 fprintf(stderr, "-initrd only allowed with -kernel option\n");
4127 exit(1);
4130 if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
4131 fprintf(stderr, "-dtb only allowed with -kernel option\n");
4132 exit(1);
4135 os_set_line_buffering();
4137 qemu_init_cpu_loop();
4138 qemu_mutex_lock_iothread();
4140 #ifdef CONFIG_SPICE
4141 /* spice needs the timers to be initialized by this point */
4142 qemu_spice_init();
4143 #endif
4145 if (icount_option && (kvm_enabled() || xen_enabled())) {
4146 fprintf(stderr, "-icount is not allowed with kvm or xen\n");
4147 exit(1);
4149 configure_icount(icount_option);
4151 /* clean up network at qemu process termination */
4152 atexit(&net_cleanup);
4154 if (net_init_clients() < 0) {
4155 exit(1);
4158 #ifdef CONFIG_TPM
4159 if (tpm_init() < 0) {
4160 exit(1);
4162 #endif
4164 /* init the bluetooth world */
4165 if (foreach_device_config(DEV_BT, bt_parse))
4166 exit(1);
4168 if (!xen_enabled()) {
4169 /* On 32-bit hosts, QEMU is limited by virtual address space */
4170 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4171 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4172 exit(1);
4176 cpu_exec_init_all();
4178 blk_mig_init();
4180 /* open the virtual block devices */
4181 if (snapshot)
4182 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
4183 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4184 &machine->block_default_type, 1) != 0) {
4185 exit(1);
4188 default_drive(default_cdrom, snapshot, machine->block_default_type, 2,
4189 CDROM_OPTS);
4190 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4191 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4193 register_savevm_live(NULL, "ram", 0, 4, &savevm_ram_handlers, NULL);
4195 if (nb_numa_nodes > 0) {
4196 int i;
4198 if (nb_numa_nodes > MAX_NODES) {
4199 nb_numa_nodes = MAX_NODES;
4202 /* If no memory size if given for any node, assume the default case
4203 * and distribute the available memory equally across all nodes
4205 for (i = 0; i < nb_numa_nodes; i++) {
4206 if (node_mem[i] != 0)
4207 break;
4209 if (i == nb_numa_nodes) {
4210 uint64_t usedmem = 0;
4212 /* On Linux, the each node's border has to be 8MB aligned,
4213 * the final node gets the rest.
4215 for (i = 0; i < nb_numa_nodes - 1; i++) {
4216 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
4217 usedmem += node_mem[i];
4219 node_mem[i] = ram_size - usedmem;
4222 for (i = 0; i < nb_numa_nodes; i++) {
4223 if (!bitmap_empty(node_cpumask[i], MAX_CPUMASK_BITS)) {
4224 break;
4227 /* assigning the VCPUs round-robin is easier to implement, guest OSes
4228 * must cope with this anyway, because there are BIOSes out there in
4229 * real machines which also use this scheme.
4231 if (i == nb_numa_nodes) {
4232 for (i = 0; i < max_cpus; i++) {
4233 set_bit(i, node_cpumask[i % nb_numa_nodes]);
4238 if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
4239 exit(1);
4242 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4243 exit(1);
4244 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4245 exit(1);
4246 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4247 exit(1);
4248 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4249 exit(1);
4251 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4252 exit(1);
4254 /* If no default VGA is requested, the default is "none". */
4255 if (default_vga) {
4256 if (cirrus_vga_available()) {
4257 vga_model = "cirrus";
4258 } else if (vga_available()) {
4259 vga_model = "std";
4262 select_vgahw(vga_model);
4264 if (watchdog) {
4265 i = select_watchdog(watchdog);
4266 if (i > 0)
4267 exit (i == 1 ? 1 : 0);
4270 if (machine->compat_props) {
4271 qdev_prop_register_global_list(machine->compat_props);
4273 qemu_add_globals();
4275 qdev_machine_init();
4277 QEMUMachineInitArgs args = { .machine = machine,
4278 .ram_size = ram_size,
4279 .boot_order = boot_order,
4280 .kernel_filename = kernel_filename,
4281 .kernel_cmdline = kernel_cmdline,
4282 .initrd_filename = initrd_filename,
4283 .cpu_model = cpu_model };
4284 machine->init(&args);
4286 audio_init();
4288 cpu_synchronize_all_post_init();
4290 set_numa_modes();
4292 current_machine = machine;
4294 /* init USB devices */
4295 if (usb_enabled(false)) {
4296 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4297 exit(1);
4300 /* init generic devices */
4301 if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
4302 exit(1);
4304 net_check_clients();
4306 ds = init_displaystate();
4308 /* init local displays */
4309 switch (display_type) {
4310 case DT_NOGRAPHIC:
4311 (void)ds; /* avoid warning if no display is configured */
4312 break;
4313 #if defined(CONFIG_CURSES)
4314 case DT_CURSES:
4315 curses_display_init(ds, full_screen);
4316 break;
4317 #endif
4318 #if defined(CONFIG_SDL)
4319 case DT_SDL:
4320 sdl_display_init(ds, full_screen, no_frame);
4321 break;
4322 #elif defined(CONFIG_COCOA)
4323 case DT_SDL:
4324 cocoa_display_init(ds, full_screen);
4325 break;
4326 #endif
4327 #if defined(CONFIG_GTK)
4328 case DT_GTK:
4329 gtk_display_init(ds, full_screen);
4330 break;
4331 #endif
4332 default:
4333 break;
4336 /* must be after terminal init, SDL library changes signal handlers */
4337 os_setup_signal_handling();
4339 #ifdef CONFIG_VNC
4340 /* init remote displays */
4341 if (vnc_display) {
4342 Error *local_err = NULL;
4343 vnc_display_init(ds);
4344 vnc_display_open(ds, vnc_display, &local_err);
4345 if (local_err != NULL) {
4346 error_report("Failed to start VNC server on `%s': %s",
4347 vnc_display, error_get_pretty(local_err));
4348 error_free(local_err);
4349 exit(1);
4352 if (show_vnc_port) {
4353 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
4356 #endif
4357 #ifdef CONFIG_SPICE
4358 if (using_spice) {
4359 qemu_spice_display_init();
4361 #endif
4363 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4364 exit(1);
4367 qdev_machine_creation_done();
4369 if (rom_load_all() != 0) {
4370 fprintf(stderr, "rom loading failed\n");
4371 exit(1);
4374 /* TODO: once all bus devices are qdevified, this should be done
4375 * when bus is created by qdev.c */
4376 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4377 qemu_run_machine_init_done_notifiers();
4379 /* Done notifiers can load ROMs */
4380 rom_load_done();
4382 qemu_system_reset(VMRESET_SILENT);
4383 if (loadvm) {
4384 if (load_vmstate(loadvm) < 0) {
4385 autostart = 0;
4389 if (incoming) {
4390 Error *local_err = NULL;
4391 qemu_start_incoming_migration(incoming, &local_err);
4392 if (local_err) {
4393 error_report("-incoming %s: %s", incoming,
4394 error_get_pretty(local_err));
4395 error_free(local_err);
4396 exit(1);
4398 } else if (autostart) {
4399 vm_start();
4402 os_setup_post();
4404 if (is_daemonized()) {
4405 if (!trace_backend_init(trace_events, trace_file)) {
4406 exit(1);
4410 main_loop();
4411 bdrv_close_all();
4412 pause_all_vcpus();
4413 res_free();
4414 #ifdef CONFIG_TPM
4415 tpm_cleanup();
4416 #endif
4418 return 0;